Debian DSA-3538-1 : libebml - security update

critical Nessus Plugin ID 90281

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Synopsis

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

Description

Several vulnerabilities were discovered in libebml, a library for manipulating Extensible Binary Meta Language files.

- CVE-2015-8789 Context-dependent attackers could trigger a use-after-free vulnerability by providing a maliciously crafted EBML document.

- CVE-2015-8790 Context-dependent attackers could obtain sensitive information from the process' heap memory by using a maliciously crafted UTF-8 string.

- CVE-2015-8791 Context-dependent attackers could obtain sensitive information from the process' heap memory by using a maliciously crafted length value in an EBML id.

Solution

Upgrade the libebml packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.2-2+deb7u1.

For the stable distribution (jessie), these problems have been fixed in version 1.3.0-2+deb8u1.

Plugin Details

Severity: Critical

ID: 90281

File Name: debian_DSA-3538.nasl

Version: 2.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/1/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/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:libebml, cpe:/o:debian:debian_linux:7.0, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2016

Reference Information

CVE: CVE-2015-8789, CVE-2015-8790, CVE-2015-8791

DSA: 3538

Detections

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