CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS
Percentile
69.1%
The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3463 advisory.
sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from eidenv. (CVE-2019-6502)
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid. (CVE-2021-42779)
A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library. (CVE-2021-42780)
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library. (CVE-2021-42781)
Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library. (CVE-2021-42782)
A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context.
The cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags, where remaining length is wrongly caculated due to moved starting pointer. This leads to possible heap-based buffer oob read. In cases where ASAN is enabled while compiling this causes a crash. Further info leak or more damage is possible. (CVE-2023-2977)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3463. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(177462);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/06/21");
script_cve_id(
"CVE-2019-6502",
"CVE-2021-42779",
"CVE-2021-42780",
"CVE-2021-42781",
"CVE-2021-42782",
"CVE-2023-2977"
);
script_name(english:"Debian DLA-3463-1 : opensc - LTS security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-3463 advisory.
- sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from
eidenv. (CVE-2019-6502)
- A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid. (CVE-2021-42779)
- A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could
potentially crash programs using the library. (CVE-2021-42780)
- Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could
potentially crash programs using the library. (CVE-2021-42781)
- Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could
potentially crash programs using the library. (CVE-2021-42782)
- A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15
cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context.
The cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags, where remaining length is
wrongly caculated due to moved starting pointer. This leads to possible heap-based buffer oob read. In
cases where ASAN is enabled while compiling this causes a crash. Further info leak or more damage is
possible. (CVE-2023-2977)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1037021");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/opensc");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2023/dla-3463");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2019-6502");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-42779");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-42780");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-42781");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-42782");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-2977");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/opensc");
script_set_attribute(attribute:"solution", value:
"Upgrade the opensc packages.
For Debian 10 buster, these problems have been fixed in version 0.19.0-1+deb10u2.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-42782");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-2977");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/22");
script_set_attribute(attribute:"patch_publication_date", value:"2023/06/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/06/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:opensc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:opensc-pkcs11");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
var pkgs = [
{'release': '10.0', 'prefix': 'opensc', 'reference': '0.19.0-1+deb10u2'},
{'release': '10.0', 'prefix': 'opensc-pkcs11', 'reference': '0.19.0-1+deb10u2'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var _release = NULL;
var prefix = NULL;
var reference = NULL;
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (_release && prefix && reference) {
if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : deb_report_get()
);
exit(0);
}
else
{
var tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'opensc / opensc-pkcs11');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6502
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42779
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42780
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42781
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42782
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2977
bugs.debian.org/cgi-bin/bugreport.cgi?bug=1037021
packages.debian.org/source/buster/opensc
security-tracker.debian.org/tracker/CVE-2019-6502
security-tracker.debian.org/tracker/CVE-2021-42779
security-tracker.debian.org/tracker/CVE-2021-42780
security-tracker.debian.org/tracker/CVE-2021-42781
security-tracker.debian.org/tracker/CVE-2021-42782
security-tracker.debian.org/tracker/CVE-2023-2977
security-tracker.debian.org/tracker/source-package/opensc
www.debian.org/lts/security/2023/dla-3463
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS
Percentile
69.1%