Debian DSA-3078-1 : libksba - security update

medium Nessus Plugin ID 79600
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Synopsis

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

Description

An integer underflow flaw, leading to a heap-based buffer overflow, was found in the ksba_oid_to_str() function of libksba, an X.509 and CMS (PKCS#7) library. By using special crafted S/MIME messages or ECC based OpenPGP data, it is possible to create a buffer overflow, which could cause an application using libksba to crash (denial of service), or potentially, execute arbitrary code.

Solution

Upgrade the libksba packages.

For the stable distribution (wheezy), this problem has been fixed in version 1.2.0-2+deb7u1.

For the upcoming stable distribution (jessie), this problem has been fixed in version 1.3.2-1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=770972

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

https://www.debian.org/security/2014/dsa-3078

Plugin Details

Severity: Medium

ID: 79600

File Name: debian_DSA-3078.nasl

Version: 1.10

Type: local

Agent: unix

Published: 11/28/2014

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libksba, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/27/2014

Reference Information

CVE: CVE-2014-9087

BID: 71285

DSA: 3078