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Fedora 37 clamav Medium DoS CVE-2026-20032 SUSE-2026-0910-1

opensuse
Calendar Grey March 17, 2026
Dist Opensuse Esm H88
Update addresses a Moderate risk denial of service issue in clamav for openSUSE Leap 15.4 with patch instructions provided.
An update that solves one vulnerability, contains one feature and has two security fixes can now be installed.

Description

This update for clamav fixes the following issues:

Update to clamav 1.5.2:

Security issue:

* CVE-2026-20031: improper error handling in the HTML CSS module when

splitting UTF-8 strings can lead to denial of service conditions via a

crafted HTML file (bsc#1259207).

Non security issue:

* Support transactional updates (jsc#PED-14819).

Changelog:

* Fixed a possible infinite loop when scanning some JPEG files by upgrading

affected ClamAV dependency, a Rust image library.

* The CVD verification process will now ignore certificate files in the CVD

certs directory when the user lacks read permissions.

* Freshclam: Fix CLD verification bug with PrivateMirror option.

* Upgraded the Rust bytes dependency to a newer version to resolve

RUSTSEC-2026-0007 advisory.

* Fixed a possible crash caused by invalid pointer alignment on some

platforms.

* Minimal required Rust version is now 1.87.

Topics%20covered

Topics Covered

security advisory moderate denial of service vulnerability clamav OpenSUSE

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-906=1

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64)

* libclammspack0-1.5.2-150400.13.5.1

* clamav-debuginfo-1.5.2-150400.13.5.1

* libclamav12-debuginfo-1.5.2-150400.13.5.1

* libfreshclam4-debuginfo-1.5.2-150400.13.5.1

* clamav-milter-1.5.2-150400.13.5.1

* libclamav12-1.5.2-150400.13.5.1

* libfreshclam4-1.5.2-150400.13.5.1

* clamav-debugsource-1.5.2-150400.13.5.1

* libclammspack0-debuginfo-1.5.2-150400.13.5.1

* clamav-milter-debuginfo-1.5.2-150400.13.5.1

* clamav-1.5.2-150400.13.5.1

* clamav-devel-1.5.2-150400.13.5.1

* openSUSE Leap 15.4 (noarch)

* clamav-docs-html-1.5.2-150400.13.5.1

References

* bsc#1221954

* bsc#1258072

* bsc#1259207

* jsc#PED-14819

## References:

* https://www.suse.com/security/cve/CVE-2026-20031.html

* https://bugzilla.suse.com/show_bug.cgi?id=1221954

* https://bugzilla.suse.com/show_bug.cgi?id=1258072

* https://bugzilla.suse.com/show_bug.cgi?id=1259207

* https://jira.suse.com/browse/PED-14819

Announcement ID: SUSE-SU-2026:0906-1
Release Date: 2026-03-17T16:32:20Z
Affected Products: * openSUSE Leap 15.4

Topics%20covered

Topics Covered

security advisory moderate denial of service vulnerability clamav OpenSUSE

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