Debian DSA-3582-1 : expat - security update

High Nessus Plugin ID 91200

Synopsis

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

Description

Gustavo Grieco discovered that Expat, an XML parsing C library, does not properly handle certain kinds of malformed input documents, resulting in buffer overflows during processing and error reporting. A remote attacker can take advantage of this flaw to cause an application using the Expat library to crash, or potentially, to execute arbitrary code with the privileges of the user running the application.

Solution

Upgrade the expat packages.

For the stable distribution (jessie), this problem has been fixed in version 2.1.0-6+deb8u2. Additionally this update refreshes the fix for CVE-2015-1283 to avoid relying on undefined behavior.

See Also

https://security-tracker.debian.org/tracker/CVE-2015-1283

https://packages.debian.org/source/jessie/expat

https://www.debian.org/security/2016/dsa-3582

Plugin Details

Severity: High

ID: 91200

File Name: debian_DSA-3582.nasl

Version: 2.12

Type: local

Agent: unix

Published: 2016/05/18

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:expat, cpe:/o:debian:debian_linux:8.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/05/18

Reference Information

CVE: CVE-2016-0718, CVE-2016-4472

DSA: 3582