Debian dsa-5611 : glibc-doc - security update

high Nessus Plugin ID 189829

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5611 advisory.

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- ------------------------------------------------------------------------- Debian Security Advisory DSA-5611-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso January 30, 2024 https://www.debian.org/security/faq
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Package : glibc CVE ID : CVE-2023-6246 CVE-2023-6779 CVE-2023-6780

The Qualys Research Labs discovered several vulnerabilities in the GNU C Library's __vsyslog_internal() function (called by syslog() and vsyslog()). A heap-based buffer overflow (CVE-2023-6246), an off-by-one heap overflow (CVE-2023-6779) and an integer overflow (CVE-2023-6780) can be exploited for privilege escalation or denial of service.

Details can be found in the Qualys advisory at https://www.qualys.com/2024/01/30/syslog

Additionally a memory corruption was discovered in the glibc's qsort() function, due to missing bounds check and when called by a program with a non-transitive comparison function and a large number of attacker-controlled elements. As the use of qsort() with a non-transitive comparison function is undefined according to POSIX and ISO C standards, this is not considered a vulnerability in the glibc itself. However the qsort() implementation was hardened against misbehaving callers.

Details can be found in the Qualys advisory at https://www.qualys.com/2024/01/30/qsort

For the stable distribution (bookworm), these problems have been fixed in version 2.36-9+deb12u4.

We recommend that you upgrade your glibc packages.

For the detailed security status of glibc please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/glibc

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]
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Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the glibc-doc packages.

Plugin Details

Severity: High

ID: 189829

File Name: debian_DSA-5611.nasl

Version: 1.4

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 1/30/2024

Updated: 1/24/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.48

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-6246

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libc6-dbg, p-cpe:/a:debian:debian_linux:libc6-mips32, p-cpe:/a:debian:debian_linux:glibc-source, p-cpe:/a:debian:debian_linux:libc6-x32, p-cpe:/a:debian:debian_linux:glibc-doc, p-cpe:/a:debian:debian_linux:libc6-dev-x32, p-cpe:/a:debian:debian_linux:libc6-dev-mipsn32, p-cpe:/a:debian:debian_linux:libc6-i386, p-cpe:/a:debian:debian_linux:libc-dev-bin, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:libc6-udeb, p-cpe:/a:debian:debian_linux:libc6-dev, p-cpe:/a:debian:debian_linux:libc6-dev-s390, p-cpe:/a:debian:debian_linux:libc6-mipsn32, p-cpe:/a:debian:debian_linux:libc6-amd64, p-cpe:/a:debian:debian_linux:libc-l10n, p-cpe:/a:debian:debian_linux:libc6-dev-amd64, p-cpe:/a:debian:debian_linux:libc-devtools, p-cpe:/a:debian:debian_linux:locales-all, p-cpe:/a:debian:debian_linux:nscd, p-cpe:/a:debian:debian_linux:libc6-dev-i386, p-cpe:/a:debian:debian_linux:libc6-dev-mips32, p-cpe:/a:debian:debian_linux:libc6-s390, p-cpe:/a:debian:debian_linux:locales, p-cpe:/a:debian:debian_linux:libc6-mips64, p-cpe:/a:debian:debian_linux:libc6-dev-mips64, p-cpe:/a:debian:debian_linux:libc-bin, p-cpe:/a:debian:debian_linux:libc6

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/30/2024

Vulnerability Publication Date: 1/30/2024

Reference Information

CVE: CVE-2023-6246, CVE-2023-6779, CVE-2023-6780

Detections

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