6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 High
AI Score
Confidence
Low
0.11 Low
EPSS
Percentile
95.2%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4766 advisory.
The libexif packages provide a library for extracting extra information from image files.
The following packages have been upgraded to a later upstream version: libexif (0.6.22). (BZ#1841320)
Security Fix(es):
* libexif: out of bounds write in exif-data.c (CVE-2019-9278)
* libexif: out of bounds read due to a missing bounds check in exif_data_save_data_entry function in exif- data.c (CVE-2020-0093)
* libexif: integer overflow in exif_data_load_data_thumbnail function in exif-data.c (CVE-2020-0181)
* libexif: integer overflow in exif_data_load_data_content function in exif-data.c (CVE-2020-0198)
* libexif: use of uninitialized memory in EXIF Makernote handling can lead to crashes and use-after-free (CVE-2020-13113)
* libexif: unrestricted size in handling Canon EXIF MakerNote data can lead to consumption of large amounts of compute time (CVE-2020-13114)
* libexif: out of bounds read due to a missing bounds check in exif_entry_get_value function in exif- entry.c (CVE-2020-0182)
* libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c (CVE-2020-12767)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:4766. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(143097);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");
script_cve_id(
"CVE-2019-9278",
"CVE-2020-0093",
"CVE-2020-0181",
"CVE-2020-0182",
"CVE-2020-0198",
"CVE-2020-12767",
"CVE-2020-13113",
"CVE-2020-13114"
);
script_xref(name:"RHSA", value:"2020:4766");
script_name(english:"RHEL 8 : libexif (RHSA-2020:4766)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:4766 advisory.
The libexif packages provide a library for extracting extra information from image files.
The following packages have been upgraded to a later upstream version: libexif (0.6.22). (BZ#1841320)
Security Fix(es):
* libexif: out of bounds write in exif-data.c (CVE-2019-9278)
* libexif: out of bounds read due to a missing bounds check in exif_data_save_data_entry function in exif-
data.c (CVE-2020-0093)
* libexif: integer overflow in exif_data_load_data_thumbnail function in exif-data.c (CVE-2020-0181)
* libexif: integer overflow in exif_data_load_data_content function in exif-data.c (CVE-2020-0198)
* libexif: use of uninitialized memory in EXIF Makernote handling can lead to crashes and use-after-free
(CVE-2020-13113)
* libexif: unrestricted size in handling Canon EXIF MakerNote data can lead to consumption of large
amounts of compute time (CVE-2020-13114)
* libexif: out of bounds read due to a missing bounds check in exif_entry_get_value function in exif-
entry.c (CVE-2020-0182)
* libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c (CVE-2020-12767)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes
linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
# https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_4766.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9d93c881");
# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b7e37d18");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:4766");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1789031");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1834950");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1840347");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1840350");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1841320");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1847131");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1847133");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1852487");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1852490");
script_set_attribute(attribute:"solution", value:
"Update the affected libexif and / or libexif-devel packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-9278");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(125, 369, 400, 787, 822);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/27");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/19");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libexif");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libexif-devel");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'repo_relative_urls': [
'content/dist/rhel8/8.10/aarch64/appstream/debug',
'content/dist/rhel8/8.10/aarch64/appstream/os',
'content/dist/rhel8/8.10/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.10/aarch64/codeready-builder/debug',
'content/dist/rhel8/8.10/aarch64/codeready-builder/os',
'content/dist/rhel8/8.10/aarch64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.10/ppc64le/appstream/debug',
'content/dist/rhel8/8.10/ppc64le/appstream/os',
'content/dist/rhel8/8.10/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.10/ppc64le/codeready-builder/debug',
'content/dist/rhel8/8.10/ppc64le/codeready-builder/os',
'content/dist/rhel8/8.10/ppc64le/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.10/s390x/appstream/debug',
'content/dist/rhel8/8.10/s390x/appstream/os',
'content/dist/rhel8/8.10/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.10/s390x/codeready-builder/debug',
'content/dist/rhel8/8.10/s390x/codeready-builder/os',
'content/dist/rhel8/8.10/s390x/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.10/x86_64/appstream/debug',
'content/dist/rhel8/8.10/x86_64/appstream/os',
'content/dist/rhel8/8.10/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.10/x86_64/codeready-builder/debug',
'content/dist/rhel8/8.10/x86_64/codeready-builder/os',
'content/dist/rhel8/8.10/x86_64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.6/aarch64/appstream/debug',
'content/dist/rhel8/8.6/aarch64/appstream/os',
'content/dist/rhel8/8.6/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.6/aarch64/codeready-builder/debug',
'content/dist/rhel8/8.6/aarch64/codeready-builder/os',
'content/dist/rhel8/8.6/aarch64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.6/ppc64le/appstream/debug',
'content/dist/rhel8/8.6/ppc64le/appstream/os',
'content/dist/rhel8/8.6/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.6/ppc64le/codeready-builder/debug',
'content/dist/rhel8/8.6/ppc64le/codeready-builder/os',
'content/dist/rhel8/8.6/ppc64le/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.6/s390x/appstream/debug',
'content/dist/rhel8/8.6/s390x/appstream/os',
'content/dist/rhel8/8.6/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.6/s390x/codeready-builder/debug',
'content/dist/rhel8/8.6/s390x/codeready-builder/os',
'content/dist/rhel8/8.6/s390x/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/appstream/debug',
'content/dist/rhel8/8.6/x86_64/appstream/os',
'content/dist/rhel8/8.6/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/codeready-builder/debug',
'content/dist/rhel8/8.6/x86_64/codeready-builder/os',
'content/dist/rhel8/8.6/x86_64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.8/aarch64/appstream/debug',
'content/dist/rhel8/8.8/aarch64/appstream/os',
'content/dist/rhel8/8.8/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.8/aarch64/codeready-builder/debug',
'content/dist/rhel8/8.8/aarch64/codeready-builder/os',
'content/dist/rhel8/8.8/aarch64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.8/ppc64le/appstream/debug',
'content/dist/rhel8/8.8/ppc64le/appstream/os',
'content/dist/rhel8/8.8/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.8/ppc64le/codeready-builder/debug',
'content/dist/rhel8/8.8/ppc64le/codeready-builder/os',
'content/dist/rhel8/8.8/ppc64le/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.8/s390x/appstream/debug',
'content/dist/rhel8/8.8/s390x/appstream/os',
'content/dist/rhel8/8.8/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.8/s390x/codeready-builder/debug',
'content/dist/rhel8/8.8/s390x/codeready-builder/os',
'content/dist/rhel8/8.8/s390x/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/appstream/debug',
'content/dist/rhel8/8.8/x86_64/appstream/os',
'content/dist/rhel8/8.8/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/codeready-builder/debug',
'content/dist/rhel8/8.8/x86_64/codeready-builder/os',
'content/dist/rhel8/8.8/x86_64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.9/aarch64/appstream/debug',
'content/dist/rhel8/8.9/aarch64/appstream/os',
'content/dist/rhel8/8.9/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.9/aarch64/codeready-builder/debug',
'content/dist/rhel8/8.9/aarch64/codeready-builder/os',
'content/dist/rhel8/8.9/aarch64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.9/ppc64le/appstream/debug',
'content/dist/rhel8/8.9/ppc64le/appstream/os',
'content/dist/rhel8/8.9/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.9/ppc64le/codeready-builder/debug',
'content/dist/rhel8/8.9/ppc64le/codeready-builder/os',
'content/dist/rhel8/8.9/ppc64le/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.9/s390x/appstream/debug',
'content/dist/rhel8/8.9/s390x/appstream/os',
'content/dist/rhel8/8.9/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.9/s390x/codeready-builder/debug',
'content/dist/rhel8/8.9/s390x/codeready-builder/os',
'content/dist/rhel8/8.9/s390x/codeready-builder/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/appstream/debug',
'content/dist/rhel8/8.9/x86_64/appstream/os',
'content/dist/rhel8/8.9/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/codeready-builder/debug',
'content/dist/rhel8/8.9/x86_64/codeready-builder/os',
'content/dist/rhel8/8.9/x86_64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8/aarch64/appstream/debug',
'content/dist/rhel8/8/aarch64/appstream/os',
'content/dist/rhel8/8/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8/aarch64/codeready-builder/debug',
'content/dist/rhel8/8/aarch64/codeready-builder/os',
'content/dist/rhel8/8/aarch64/codeready-builder/source/SRPMS',
'content/dist/rhel8/8/ppc64le/appstream/debug',
'content/dist/rhel8/8/ppc64le/appstream/os',
'content/dist/rhel8/8/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8/ppc64le/codeready-builder/debug',
'content/dist/rhel8/8/ppc64le/codeready-builder/os',
'content/dist/rhel8/8/ppc64le/codeready-builder/source/SRPMS',
'content/dist/rhel8/8/s390x/appstream/debug',
'content/dist/rhel8/8/s390x/appstream/os',
'content/dist/rhel8/8/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8/s390x/codeready-builder/debug',
'content/dist/rhel8/8/s390x/codeready-builder/os',
'content/dist/rhel8/8/s390x/codeready-builder/source/SRPMS',
'content/dist/rhel8/8/x86_64/appstream/debug',
'content/dist/rhel8/8/x86_64/appstream/os',
'content/dist/rhel8/8/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8/x86_64/codeready-builder/debug',
'content/dist/rhel8/8/x86_64/codeready-builder/os',
'content/dist/rhel8/8/x86_64/codeready-builder/source/SRPMS'
],
'pkgs': [
{'reference':'libexif-0.6.22-4.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libexif-devel-0.6.22-4.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
]
}
];
var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
foreach var pkg ( constraint_array['pkgs'] ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (reference &&
_release &&
rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
(applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
else extra = rpm_report_get();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libexif / libexif-devel');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | libexif | p-cpe:/a:redhat:enterprise_linux:libexif |
redhat | enterprise_linux | libexif-devel | p-cpe:/a:redhat:enterprise_linux:libexif-devel |
redhat | enterprise_linux | 8 | cpe:/o:redhat:enterprise_linux:8 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9278
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0093
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0181
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0182
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0198
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12767
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13113
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13114
www.nessus.org/u?9d93c881
www.nessus.org/u?b7e37d18
access.redhat.com/errata/RHSA-2020:4766
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1789031
bugzilla.redhat.com/show_bug.cgi?id=1834950
bugzilla.redhat.com/show_bug.cgi?id=1840347
bugzilla.redhat.com/show_bug.cgi?id=1840350
bugzilla.redhat.com/show_bug.cgi?id=1841320
bugzilla.redhat.com/show_bug.cgi?id=1847131
bugzilla.redhat.com/show_bug.cgi?id=1847133
bugzilla.redhat.com/show_bug.cgi?id=1852487
bugzilla.redhat.com/show_bug.cgi?id=1852490
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 High
AI Score
Confidence
Low
0.11 Low
EPSS
Percentile
95.2%