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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-5514.NASL
HistoryOct 03, 2023 - 12:00 a.m.

Debian DSA-5514-1 : glibc - security update

2023-10-0300:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
25
debian
glibc
security update
vulnerabilities
buffer overflow
dns
stack disclosure
application crash
elevated privileges

8 High

AI Score

Confidence

High

JSON

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5514 advisory.

  • A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. (CVE-2023-4527)

  • A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the
    nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags. (CVE-2023-4806)

  • A buffer overflow was discovered in the GNU C Library’s dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges. (CVE-2023-4911)

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 dsa-5514. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(182473);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/29");

  script_cve_id("CVE-2023-4527", "CVE-2023-4806", "CVE-2023-4911");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/12/12");

  script_name(english:"Debian DSA-5514-1 : glibc - 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 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-5514 advisory.

  - A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and
    the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048
    bytes can potentially disclose stack contents through the function returned address data, and may cause a
    crash. (CVE-2023-4527)

  - A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that
    has been freed, resulting in an application crash. This issue is only exploitable when a NSS module
    implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the
    _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the
    call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and
    AI_V4MAPPED as flags. (CVE-2023-4806)

  - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the
    GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted
    GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with
    elevated privileges. (CVE-2023-4911)

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://security-tracker.debian.org/tracker/source-package/glibc");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2023/dsa-5514");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-4527");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-4806");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-4911");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/glibc");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/glibc");
  script_set_attribute(attribute:"solution", value:
"Upgrade the glibc packages.

For the stable distribution (bookworm), this problem has been fixed in version 2.36-9+deb12u3.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-4911");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Glibc Tunables Privilege Escalation CVE-2023-4911 (aka Looney Tunables)');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/09/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glibc-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glibc-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-dev-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-devtools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-l10n");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-mips32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-mips64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-mipsn32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-s390");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-dev-x32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-mips32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-mips64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-mipsn32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-s390");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-x32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc6-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:locales");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:locales-all");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  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) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/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:"^(11)\.[0-9]+|^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0 / 12.0', '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': '11.0', 'prefix': 'glibc-doc', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'glibc-source', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc-bin', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc-dev-bin', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc-devtools', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc-l10n', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-amd64', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dbg', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-amd64', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-i386', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-mips32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-mips64', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-mipsn32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-s390', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-dev-x32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-i386', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-mips32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-mips64', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-mipsn32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-s390', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-udeb', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-x32', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'libc6-xen', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'locales', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'locales-all', 'reference': '2.31-13+deb11u7'},
    {'release': '11.0', 'prefix': 'nscd', 'reference': '2.31-13+deb11u7'},
    {'release': '12.0', 'prefix': 'glibc-doc', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'glibc-source', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc-bin', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc-dev-bin', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc-devtools', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc-l10n', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-amd64', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dbg', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-amd64', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-i386', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-mips32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-mips64', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-mipsn32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-s390', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-dev-x32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-i386', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-mips32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-mips64', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-mipsn32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-s390', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-udeb', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'libc6-x32', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'locales', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'locales-all', 'reference': '2.36-9+deb12u3'},
    {'release': '12.0', 'prefix': 'nscd', 'reference': '2.36-9+deb12u3'}
];

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, 'glibc-doc / glibc-source / libc-bin / libc-dev-bin / libc-devtools / etc');
}
VendorProductVersionCPE
debiandebian_linuxglibc-docp-cpe:/a:debian:debian_linux:glibc-doc
debiandebian_linuxglibc-sourcep-cpe:/a:debian:debian_linux:glibc-source
debiandebian_linuxlibc-binp-cpe:/a:debian:debian_linux:libc-bin
debiandebian_linuxlibc-dev-binp-cpe:/a:debian:debian_linux:libc-dev-bin
debiandebian_linuxlibc-devtoolsp-cpe:/a:debian:debian_linux:libc-devtools
debiandebian_linuxlibc-l10np-cpe:/a:debian:debian_linux:libc-l10n
debiandebian_linuxlibc6p-cpe:/a:debian:debian_linux:libc6
debiandebian_linuxlibc6-amd64p-cpe:/a:debian:debian_linux:libc6-amd64
debiandebian_linuxlibc6-dbgp-cpe:/a:debian:debian_linux:libc6-dbg
debiandebian_linuxlibc6-devp-cpe:/a:debian:debian_linux:libc6-dev
Rows per page:
1-10 of 301

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CVE-2023-4806 affecting package glibc for versions less than 2.35-6
2023-11-08 02:07:28
CVE-2023-4911 affecting package glibc for versions less than 2.35-5
2023-10-11 01:41:59
broadcom
broadcom
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so
2024-01-17 00:00:00
zdt
zdt
Glibc Tunables Privilege Escalation Exploit
2023-12-21 00:00:00
glibc ld.so Local Privilege Escalation Vulnerability
2023-10-08 00:00:00
githubexploit
githubexploit
Exploit for CVE-2023-4911
2023-10-25 11:59:34
Exploit for CVE-2023-4911
2023-10-28 20:05:30
Exploit for CVE-2023-4911
2023-10-04 14:12:16
packetstorm
packetstorm
Glibc Tunables Privilege Escalation
2023-12-21 00:00:00
glibc ld.so Local Privilege Escalation
2023-10-06 00:00:00
attackerkb
attackerkb
CVE-2023-4911
2023-10-03 00:00:00
cisa_kev
cisa_kev
GNU C Library Buffer Overflow Vulnerability
2023-11-21 00:00:00
metasploit
metasploit
Glibc Tunables Privilege Escalation CVE-2023-4911 (aka Looney Tunables)
2023-12-14 23:28:43
hivepro
hivepro
Kinsing Exploits Looney Tunables Vulnerability to Breach Cloud Environments
2023-11-07 08:23:12
‘Looney Tunables’ Flaw Enables Local Privilege Escalation in Glibc
2023-10-05 10:18:37
qualysblog
qualysblog
CVE-2023-4911: Looney Tunables – Local Privilege Escalation in the glibc’s ld.so
2023-10-03 17:21:22
f5
f5
K000137187 : GlibC vulnerability CVE-2023-4911
2023-10-09 00:00:00
kitploit
kitploit
LooneyPwner - Exploit Tool For CVE-2023-4911, Targeting The 'Looney Tunables' Glibc Vulnerability In Various Linux Distributions
2023-10-27 11:30:00
photon
photon
Critical Photon OS Security Update - PHSA-2023-5.0-0110
2023-10-06 00:00:00
Moderate Photon OS Security Update - PHSA-2024-3.0-0715
2024-01-19 00:00:00
Moderate Photon OS Security Update - PHSA-2023-5.0-0107
2023-10-05 00:00:00
github
github
Cueing up a calculator: an introduction to exploit development on Linux
2023-12-06 17:30:42

8 High

AI Score

Confidence

High

JSON
Related for DEBIAN_DSA-5514.NASL
nessus38openvas19debian1fedora3rocky1oraclelinux8gentoo1osv9rosalinux2almalinux2redhat44ubuntu1mageia3cloudfoundry1ibm7ubuntucve4redhatcve4wolfi2cgr2prion4debiancve4cve4cbl_mariner2broadcom1zdt2githubexploit16packetstorm2attackerkb1cisa_kev1metasploit1hivepro2qualysblog1f51kitploit1photon3github1