Debian DSA-4757-1 : apache2 - security update

critical Nessus Plugin ID 140104

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Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities have been found in the Apache HTTPD server.

- CVE-2020-1927 Fabrice Perez reported that certain mod_rewrite configurations are prone to an open redirect.

- CVE-2020-1934 Chamal De Silva discovered that the mod_proxy_ftp module uses uninitialized memory when proxying to a malicious FTP backend.

- CVE-2020-9490 Felix Wilhelm discovered that a specially crafted value for the 'Cache-Digest' header in a HTTP/2 request could cause a crash when the server actually tries to HTTP/2 PUSH a resource afterwards.

- CVE-2020-11984 Felix Wilhelm reported a buffer overflow flaw in the mod_proxy_uwsgi module which could result in information disclosure or potentially remote code execution.

- CVE-2020-11993 Felix Wilhelm reported that when trace/debug was enabled for the HTTP/2 module certain traffic edge patterns can cause logging statements on the wrong connection, causing concurrent use of memory pools.

Solution

Upgrade the apache2 packages.

For the stable distribution (buster), these problems have been fixed in version 2.4.38-3+deb10u4.

Plugin Details

Severity: Critical

ID: 140104

File Name: debian_DSA-4757.nasl

Version: 1.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/1/2020

Updated: 2/22/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2020-11984

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:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:apache2

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2020

Vulnerability Publication Date: 4/1/2020

Reference Information

CVE: CVE-2020-11984, CVE-2020-11993, CVE-2020-1927, CVE-2020-1934, CVE-2020-9490

DSA: 4757

IAVA: 2020-A-0376-S

Detections

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