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openSUSE 16: clamav / clamav-devel / clamav-milter / libclamav12 / etc (openSUSE-SU-2026:21252-1)

critical Nessus Plugin ID 326031

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21252-1 advisory.

 Update to version 1.5.3.

 Security issues fixed:

 - CVE-2026-20213: out-of-bounds write due to improper boundary checks for content in PE files during scanning (bsc#1270107).
 - CVE-2026-20214: out-of-bounds write due to improper boundary checks for content in FSG files during scanning (bsc#1270085).
 - CVE-2026-20215: out-of-bounds write due to improper boundary checks for content in 7z files during scanning (bsc#1270088).
 - CVE-2026-20216: denial of service due to improper handling of temporary resources during InstallShield file scanning (bsc#1270089).
 - CVE-2026-20217: out-of-bounds write due to improper boundary checks for content in PESpin files during scanning (bsc#1270091).
 - CVE-2026-20243: out-of-bounds write due to improper boundary checks for content in ALZ files during scanning (bsc#1270092).
 - CVE-2026-20244: integer overflow and DoS due to improper boundary checks for content in DMG files during scanning (bsc#1270106).
 - CVE-2026-41676: buffer overflow due to missing checks via `Deriver:derive`, `PkeyCtxRef:derive` and OpenSSL 1.1.1 (bsc#1270138).

 Other updates and bugfixes:

 - Version 1.5.3:
 * Fixed a bug in the PESpin unpacker cleanup path that could free pointers into the scanned file buffer and crash the scanner.
 * Fixed an integer overflow in PE rebuild size calculations that could be reached through a malformed Aspack-packed PE file and lead to a heap buffer overflow write.
 * Fixed an InstallShield archive extraction limit bypass that could write far more temporary data than intended and exhaust temporary storage.
 * Fixed an FSG unpacker loop underflow that could write past the section array while scanning a malformed PE file.
 * Fixed ALZ parser size handling bugs that could cause malformed ALZ archives to panic, abort the scanner, or skip expected scan-limit handling.
 * Fixed a 7z parser substream count overflow that could under-allocate parser metadata arrays and write past them while reading a malformed archive.
 * Fixed 32-bit DMG parser size checks that could let a short mish stripe table pass validation and crash 32-bit scanner builds.
 * Hardened clamscan, clamdscan, and clamonacc quarantine actions against time-of-check/time-of-use races that could redirect copied, moved, or removed files under unsafe quarantine directory configurations.
 * Upgraded the Rust tar dependency to resolve the RUSTSEC-2026-0067 and RUSTSEC-2026-0068 advisories, and upgraded the Rust openssl dependency to resolve CVE-2026-41676.
 * Raised the minimum required CMake version to 3.17 to fix Linux builds with libcurl v8.21.0 when linking static library dependencies.
 * Metadata preclass scans now run before the final scan verdict.
 * ClamOnAcc: Fixed errors when recursively excluded paths are children of an included path.
 * ClamOnAcc: Fixed hash bucket list corruption when two watched paths collide in the same bucket.

Tenable has extracted the preceding description block directly from the SUSE 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

Update the affected packages.

See Also

https://bugzilla.suse.com/1270085

https://bugzilla.suse.com/1270088

https://bugzilla.suse.com/1270089

https://bugzilla.suse.com/1270091

https://bugzilla.suse.com/1270092

https://bugzilla.suse.com/1270106

https://bugzilla.suse.com/1270107

https://bugzilla.suse.com/1270138

https://www.suse.com/security/cve/CVE-2026-20213

https://www.suse.com/security/cve/CVE-2026-20214

https://www.suse.com/security/cve/CVE-2026-20215

https://www.suse.com/security/cve/CVE-2026-20216

https://www.suse.com/security/cve/CVE-2026-20217

https://www.suse.com/security/cve/CVE-2026-20243

https://www.suse.com/security/cve/CVE-2026-20244

https://www.suse.com/security/cve/CVE-2026-41676

Plugin Details

Severity: Critical

ID: 326031

File Name: openSUSE-2026-21252-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/9/2026

Updated: 7/9/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.06

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-41676

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:clamav-devel, p-cpe:/a:novell:opensuse:clamav-milter, p-cpe:/a:novell:opensuse:libclammspack0, p-cpe:/a:novell:opensuse:clamav, p-cpe:/a:novell:opensuse:libclamav12, p-cpe:/a:novell:opensuse:libfreshclam4

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2026

Vulnerability Publication Date: 4/22/2026

Reference Information

CVE: CVE-2026-20213, CVE-2026-20214, CVE-2026-20215, CVE-2026-20216, CVE-2026-20217, CVE-2026-20243, CVE-2026-20244, CVE-2026-41676