SUSE SLED15: apache2 / apache2-devel / apache2-event / apache2-manual / etc (SUSE-SU-2026:5077-1)

critical Nessus Plugin ID 376253

Synopsis

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

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:5077-1 advisory.

- CVE-2026-42356: deployment of wrong handler allows target of internal redirects from CGI programs to also be treated as CGI and executed (bsc#1284043).
- CVE-2026-42528: memory calculation bug in `mod_dav` allows an attacker with permission to create WebDAV locks to crash server child processes (bsc#1284044).
- CVE-2026-46729: NULL pointer dereference in `mod_heartmonitor` over unicast listener (bsc#1284045).
- CVE-2026-47360: session cookie passed to a backend server when `SessionCookieRemove` changes across internal redirects (bsc#1284046).
- CVE-2026-48005: missing authentication checks in `mod_auth_digest` allows an unauthenticated remote client to cause a DoS via forged `Authorization` headers when Digest authentication is enabled with `AuthDigestNcCheck` (bsc#1284047).
- CVE-2026-56153: out-of-bounds write in `mod_charset_lite` (bsc#1284048).
- CVE-2026-56154: use-after-free in `mod_rewrite` when using lookahead `(%{LA-U:HTTP:...})` (bsc#1284049).
- CVE-2026-57941: use-after-free in `mod_http2` via shared `session->bbtmp` re-entrancy (bsc#1284050).
- CVE-2026-58415: internal state files accessible to external parties in `mod_dav_fs` allows a remote client to read WebDAV dead properties of resources it cannot author via a GET request for the .DAV state directory (bsc#1284051).
- CVE-2026-59797: improper privilege management in `mod_ssl` when using `SSLRequire` and file-related expressions (bsc#1284059).
- CVE-2026-63045: improper validation of FTP PASV reply address in `mod_proxy_ftp` allows an untrusted FTP server to cause a proxy to open a data connection to an arbitrary third-party host (bsc#1284060).
- CVE-2026-63292: stack-based buffer overflow in `mod_vhost_alias` allows a remote client to cause a DoS or potentially execute arbitrary code via an HTTP request with a specially crafted `Host` header (bsc#1284061).
- CVE-2026-63686: NULL pointer dereference in `mod_xml2enc` allows an untrusted backend server to cause a denial of service via a crafted proxied response (bsc#1284058).
- CVE-2026-63718: inconsistent interpretation of HTTP requests in `mod_proxy_uwsgi` allows for response smuggling via a crafted uwsgi response with `Transfer-Encoding` (bsc#1284057).
- CVE-2026-73636: authentication bypass by capture-replay in `mod_auth_digest` allows a MiTM attacker to replay captured digest authentication credentials via crafted requests (bsc#1284056).
- CVE-2026-73637: use-after-free in `mod_auth_digest` allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests (bsc#1284055).
- CVE-2026-79768: path equivalence issue in the `mod_userdir` module when configured with absolute non- wildcard `UserDir` directive (bsc#1284054).
- CVE-2026-93546: integer overflow in `mod_dav_fs` allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database (bsc#1284053).

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.

Plugin Details

Severity: Critical

ID: 376253

File Name: suse_SU-2026-5077-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 11/5/2026

Updated: 11/5/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 95.63

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-59797

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:apache2-devel, p-cpe:/a:novell:suse_linux:apache2-event, p-cpe:/a:novell:suse_linux:apache2-manual, p-cpe:/a:novell:suse_linux:apache2-prefork, p-cpe:/a:novell:suse_linux:apache2-utils, p-cpe:/a:novell:suse_linux:apache2-worker, p-cpe:/a:novell:suse_linux:apache2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/3/2026

Vulnerability Publication Date: 10/1/2026

Reference Information

CVE: CVE-2026-42356, CVE-2026-42528, CVE-2026-46729, CVE-2026-47360, CVE-2026-48005, CVE-2026-56153, CVE-2026-56154, CVE-2026-57941, CVE-2026-58415, CVE-2026-59797, CVE-2026-63045, CVE-2026-63292, CVE-2026-63686, CVE-2026-63718, CVE-2026-73636, CVE-2026-73637, CVE-2026-79768, CVE-2026-93546

IAVA: 2026-A-1087

SuSE: SUSE-SU-2026:5077-1

Detections

Analytics