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openSUSE Leap 15.6: Critical Apache2 DDoS and SSRF Vulnerabilities Alert

opensuse
Calendar Grey August 4, 2025
Dist Opensuse Esm H88
Important revisions have been released for openSUSE and apache2, targeting several security flaws, notably SSRF and DoS issues.
An update that solves seven vulnerabilities can now be installed.

Description

This update for apache2 fixes the following issues:

* CVE-2024-42516: Fixed HTTP response splitting. (bsc#1246477)

* CVE-2024-43204: Fixed a SSRF when mod_proxy is loaded that allows an

attacker to send outbound proxy requests to a URL controlled by them.

(bsc#1246305)

* CVE-2024-47252: Fixed insufficient escaping of user-supplied data in mod_ssl

allows an untrusted SSL/TLS client to insert escape characters into log

file. (bsc#1246303)

* CVE-2025-23048: Fixed access control bypass by trusted clients through TLS

1.3 session resumption in some mod_ssl configurations. (bsc#1246302)

* CVE-2025-49630: Fixed denial of service can be triggered by untrusted

clients causing an assertion in mod_proxy_http2. (bsc#1246307)

* CVE-2025-49812: Fixed Opossum Attack Application Layer Desynchronization

using Opportunistic TLS. (bsc#1246169)

* CVE-2025-53020: Fixed HTTP/2 denial of service due to late release of memory

after effective lifetime....

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service important apache2 OpenSUSE SSRF

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 15.6

zypper in -t patch SUSE-2025-2684=1 openSUSE-SLE-15.6-2025-2684=1

* Basesystem Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-2684=1

* SUSE Package Hub 15 15-SP6

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2025-2684=1

* Server Applications Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-2684=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* apache2-event-debugsource-2.4.58-150600.5.35.1

* apache2-event-debuginfo-2.4.58-150600.5.35.1

* apache2-utils-debugsource-2.4.58-150600.5.35.1

* apache2-debugsource-2.4.58-150600.5.35.1

* apache2-prefork-debuginfo-2.4.58-150600.5.35.1

* apache2-utils-2.4.58-150600.5.35.1

* apache2-utils-debuginfo-2.4.58-150600.5.35.1

* apache2-event-2.4.58-150600.5.35.1

* apache2-devel-2.4.58-150600.5.35.1

* apache2-2.4.58-150600.5.35.1

* apache2-prefork-2.4.58-150600.5.35.1

* apache2-prefork-debugsource-2.4.58-150600.5.35.1

* apache2-worker-debugsource-2.4.58-150600.5.35.1

* apache2-worker-2.4.58-150600.5.35.1

* apache2-worker-debuginfo-2.4.58-150600.5.35.1

* apache2-debuginfo-2.4.58-150600.5.35.1

* openSUSE Leap 15.6 (noarch)

* apache2-manual-2.4.58-150600.5.35.1

* Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)

* apache2-debugsource-2.4.58-150600.5.35.1

* apache2-prefork-debuginfo-2.4.58-150600.5.35.1

* apache2-prefork-2.4.58-150600.5.35.1

*...

Read the Full Advisory

References

* bsc#1246169

* bsc#1246302

* bsc#1246303

* bsc#1246305

* bsc#1246306

* bsc#1246307

* bsc#1246477

## References:

* https://www.suse.com/security/cve/CVE-2024-42516.html

* https://www.suse.com/security/cve/CVE-2024-43204.html

* https://www.suse.com/security/cve/CVE-2024-47252.html

* https://www.suse.com/security/cve/CVE-2025-23048.html

* https://www.suse.com/security/cve/CVE-2025-49630.html

* https://www.suse.com/security/cve/CVE-2025-49812.html

* https://www.suse.com/security/cve/CVE-2025-53020.html

* https://bugzilla.suse.com/show_bug.cgi?id=1246169

* https://bugzilla.suse.com/show_bug.cgi?id=1246302

* https://bugzilla.suse.com/show_bug.cgi?id=1246303

* https://bugzilla.suse.com/show_bug.cgi?id=1246305

* https://bugzilla.suse.com/show_bug.cgi?id=1246306

* https://bugzilla.suse.com/show_bug.cgi?id=1246307

* https://bugzilla.suse.com/show_bug.cgi?id=1246477

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:02684-1
Release Date: 2025-08-04T15:07:40Z
Affected Products: * Basesystem Module 15-SP6 * openSUSE Leap 15.6 * Server Applications Module 15-SP6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Package Hub 15 15-SP6

Topics%20covered

Topics Covered

security advisory denial of service important apache2 OpenSUSE SSRF

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