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openSUSE Apache2 Important Buffer Overflow Denial of Service 2026-2735-1

opensuse
Calendar Grey July 3, 2026
Dist Opensuse Esm H88
This update addresses 13 important vulnerabilities in Apache2, enhancing security for openSUSE users.
An update that solves 13 vulnerabilities can now be installed.

Description

This update for apache2 fixes the following issues

* CVE-2026-29167: mod_ldap per-dir use-after-free (bsc#1267976).

* CVE-2026-29170: mod_proxy_ftp XSS (bsc#1267977).

* CVE-2026-34355: mod_proxy_html buffer overflow (bsc#1267978).

* CVE-2026-34356: malicious backend servers can lead to a heap-based buffer

overflow (bsc#1267955).

* CVE-2026-42535: malicious path manipulation can lead to child process

crashes (bsc#1267956).

* CVE-2026-42536: processing untrusted content can lead to a heap-based buffer

overflow (bsc#1267962).

* CVE-2026-43951: out-of-bound read in `merge_response_headers` can cause

crash (bsc#1267963).

* CVE-2026-44119: improper privilege management can lead to an unauthorized

read (bsc#1267965).

* CVE-2026-44185: Stack Buffer Over-Read in mod_ssl OCSP `send_request`

(bsc#1267969).

* CVE-2026-44186: responses from an attacker-controlled FTP backend can lead

to resource exhaustion and a denial of service (bsc#1267970).

*...

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Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important apache2 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:

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2735=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2735=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2735=1

Package List

* openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)

* apache2-worker-2.4.66-150600.5.55.1

* apache2-event-debugsource-2.4.66-150600.5.55.1

* apache2-utils-debugsource-2.4.66-150600.5.55.1

* apache2-event-debuginfo-2.4.66-150600.5.55.1

* apache2-debuginfo-2.4.66-150600.5.55.1

* apache2-devel-2.4.66-150600.5.55.1

* apache2-utils-2.4.66-150600.5.55.1

* apache2-worker-debugsource-2.4.66-150600.5.55.1

* apache2-prefork-2.4.66-150600.5.55.1

* apache2-event-2.4.66-150600.5.55.1

* apache2-prefork-debugsource-2.4.66-150600.5.55.1

* apache2-debugsource-2.4.66-150600.5.55.1

* apache2-worker-debuginfo-2.4.66-150600.5.55.1

* apache2-2.4.66-150600.5.55.1

* apache2-prefork-debuginfo-2.4.66-150600.5.55.1

* apache2-utils-debuginfo-2.4.66-150600.5.55.1

* openSUSE Leap 15.6 (noarch)

* apache2-manual-2.4.66-150600.5.55.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)

* apache2-manual-2.4.66-150600.5.55.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)

* apache2-worker-2.4.66-150600.5.55.1

*...

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References

* bsc#1267503

* bsc#1267955

* bsc#1267956

* bsc#1267962

* bsc#1267963

* bsc#1267965

* bsc#1267969

* bsc#1267970

* bsc#1267971

* bsc#1267972

* bsc#1267976

* bsc#1267977

* bsc#1267978

## References:

* https://www.suse.com/security/cve/CVE-2026-29167.html

* https://www.suse.com/security/cve/CVE-2026-29170.html

* https://www.suse.com/security/cve/CVE-2026-34355.html

* https://www.suse.com/security/cve/CVE-2026-34356.html

* https://www.suse.com/security/cve/CVE-2026-42535.html

* https://www.suse.com/security/cve/CVE-2026-42536.html

* https://www.suse.com/security/cve/CVE-2026-43951.html

* https://www.suse.com/security/cve/CVE-2026-44119.html

* https://www.suse.com/security/cve/CVE-2026-44185.html

* https://www.suse.com/security/cve/CVE-2026-44186.html

* https://www.suse.com/security/cve/CVE-2026-44631.html

* https://www.suse.com/security/cve/CVE-2026-48913.html

* https://www.suse.com/security/cve/CVE-2026-49975.html

* https://bugzilla.suse.com/show_bug.cgi?id=1267503

*...

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Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2735-1
Release Date: 2026-07-02T22:36:37Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important apache2 OpenSUSE

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