Synopsis
The remote Debian host is missing one or more security-related updates.
Description
The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3893 advisory.
------------------------------------------------------------------------- Debian LTS Advisory DLA-3893-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin September 19, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : expat Version : 2.2.10-2+deb11u6 CVE ID : CVE-2023-52425 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492 Debian Bug : 1063238 1080149 1080150 1080152
Multiple vulnerabilities were found in expat, an XML parsing C library, which could lead to Denial of Service, memory corruption or arbitrary code execution.
CVE-2023-52425
Snild Dolkow discovered that when parsing a large token that requires multiple buffer fills to complete, expat has to re-parse the token from start multiple times, which could lead to Denial of Service via resource exhaustion.
CVE-2024-45490
TaiYou discovered that xmlparse.c does not reject a negative length for XML_ParseBuffer(), which may cause memory corruption or code execution.
CVE-2024-45491
TaiYou discovered that xmlparse.c has an integer overflow for `nDefaultAtts` on 32-bit platforms, which may cause denial of service or code execution.
CVE-2024-45492
TaiYou discovered that xmlparse.c has an integer overflow for `m_groupSize` on 32-bit platforms, which may cause denial of service or code execution.
For Debian 11 bullseye, these problems have been fixed in version 2.2.10-2+deb11u6.
We recommend that you upgrade your expat packages.
For the detailed security status of expat please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/expat
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature
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 expat packages.
Plugin Details
File Name: debian_DLA-3893.nasl
Agent: unix
Supported Sensors: Nessus Agent, Nessus
Risk Information
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:expat, p-cpe:/a:debian:debian_linux:libexpat1, p-cpe:/a:debian:debian_linux:libexpat1-udeb, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libexpat1-dev
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: Exploits are available
Patch Publication Date: 9/19/2024
Vulnerability Publication Date: 2/4/2024