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Debian DLA-1028-1 : apache2 security update

critical Nessus Plugin ID 101774

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Synopsis

The remote Debian host is missing a security update.

Description

Robert Swiecki discovered that the value placeholder in [Proxy-]Authorization Digest headers were not initialized or reset before or between successive key=value assignments in Apache 2's mod_auth_digest module

Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request leading to leakage of potentially confidential information and a segfault.

For Debian 7 'Wheezy', this issue has been fixed in apache2 version 2.2.22-13+deb7u10.

We recommend that you upgrade your apache2 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/07/msg00020.html

https://packages.debian.org/source/wheezy/apache2

Plugin Details

Severity: Critical

ID: 101774

File Name: debian_DLA-1028.nasl

Version: 3.11

Type: local

Agent: unix

Published: 7/18/2017

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:apache2-mpm-prefork, p-cpe:/a:debian:debian_linux:apache2-suexec-custom, p-cpe:/a:debian:debian_linux:apache2-suexec, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:apache2.2-bin, p-cpe:/a:debian:debian_linux:apache2-mpm-itk, p-cpe:/a:debian:debian_linux:apache2-mpm-worker, p-cpe:/a:debian:debian_linux:apache2-utils, p-cpe:/a:debian:debian_linux:apache2-dbg, p-cpe:/a:debian:debian_linux:apache2.2-common, p-cpe:/a:debian:debian_linux:apache2-mpm-event, p-cpe:/a:debian:debian_linux:apache2-prefork-dev, p-cpe:/a:debian:debian_linux:apache2-doc, p-cpe:/a:debian:debian_linux:apache2-threaded-dev, p-cpe:/a:debian:debian_linux:apache2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2017

Reference Information

CVE: CVE-2017-9788