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
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
AI Score
Confidence
High
EPSS
Percentile
86.0%
libarchive 3.3.2 suffers from an out-of-bounds read within lha_read_data_none() in archive_read_support_format_lha.c when extracting a specially crafted lha archive, related to lha_crc16.(CVE-2017-14503)
libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.(CVE-2018-1000877)
libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.(CVE-2018-1000878)
libarchive version commit bf9aec176c6748f0ee7a678c5f9f9555b9a757c1 onwards (release v3.0.2 onwards) contains a CWE-125: Out-of-bounds Read vulnerability in 7zip decompression, archive_read_support_format_7zip.c, header_bytes() that can result in a crash (denial of service). This attack appears to be exploitable via the victim opening a specially crafted 7zip file.(CVE-2019-1000019)
libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition (‘Infinite Loop’) vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop.
This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.(CVE-2019-1000020)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2019-1325.
#
include('compat.inc');
if (description)
{
script_id(130222);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/17");
script_cve_id(
"CVE-2017-14503",
"CVE-2018-1000877",
"CVE-2018-1000878",
"CVE-2019-1000019",
"CVE-2019-1000020"
);
script_xref(name:"ALAS", value:"2019-1325");
script_name(english:"Amazon Linux 2 : libarchive (ALAS-2019-1325)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"libarchive 3.3.2 suffers from an out-of-bounds read within
lha_read_data_none() in archive_read_support_format_lha.c when
extracting a specially crafted lha archive, related to
lha_crc16.(CVE-2017-14503)
libarchive version commit 416694915449219d505531b1096384f3237dd6cc
onwards (release v3.1.0 onwards) contains a CWE-415: Double Free
vulnerability in RAR decoder -
libarchive/archive_read_support_format_rar.c, parse_codes(),
realloc(rar->lzss.window, new_size) with new_size = 0 that can result
in Crash/DoS. This attack appear to be exploitable via the victim must
open a specially crafted RAR archive.(CVE-2018-1000877)
libarchive version commit 416694915449219d505531b1096384f3237dd6cc
onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free
vulnerability in RAR decoder -
libarchive/archive_read_support_format_rar.c that can result in
Crash/DoS - it is unknown if RCE is possible. This attack appear to be
exploitable via the victim must open a specially crafted RAR
archive.(CVE-2018-1000878)
libarchive version commit bf9aec176c6748f0ee7a678c5f9f9555b9a757c1
onwards (release v3.0.2 onwards) contains a CWE-125: Out-of-bounds
Read vulnerability in 7zip decompression,
archive_read_support_format_7zip.c, header_bytes() that can result in
a crash (denial of service). This attack appears to be exploitable via
the victim opening a specially crafted 7zip file.(CVE-2019-1000019)
libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961
onwards (version v2.8.0 onwards) contains a CWE-835: Loop with
Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660
parser, archive_read_support_format_iso9660.c,
read_CE()/parse_rockridge() that can result in DoS by infinite loop.
This attack appears to be exploitable via the victim opening a
specially crafted ISO9660 file.(CVE-2019-1000020)");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2019-1325.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update libarchive' to update your system.");
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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1000878");
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:"2017/09/17");
script_set_attribute(attribute:"patch_publication_date", value:"2019/10/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/25");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bsdcpio");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bsdtar");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libarchive");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libarchive-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libarchive-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Amazon Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"AL2", reference:"bsdcpio-3.1.2-12.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"bsdtar-3.1.2-12.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"libarchive-3.1.2-12.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"libarchive-debuginfo-3.1.2-12.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"libarchive-devel-3.1.2-12.amzn2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "bsdcpio / bsdtar / libarchive / libarchive-debuginfo / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14503
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000877
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000878
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1000019
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1000020
alas.aws.amazon.com/AL2/ALAS-2019-1325.html
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
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
AI Score
Confidence
High
EPSS
Percentile
86.0%