Debian DSA-3413-1 : openssl - security update

medium Nessus Plugin ID 87212
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 3.6

Synopsis

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

Description

Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit. The Common Vulnerabilities and Exposures project identifies the following issues :

- CVE-2015-3194 Loic Jonas Etienne of Qnective AG discovered that the signature verification routines will crash with a NULL pointer dereference if presented with an ASN.1 signature using the RSA PSS algorithm and absent mask generation function parameter. A remote attacker can exploit this flaw to crash any certificate verification operation and mount a denial of service attack.

- CVE-2015-3195 Adam Langley of Google/BoringSSL discovered that OpenSSL will leak memory when presented with a malformed X509_ATTRIBUTE structure.

- CVE-2015-3196 A race condition flaw in the handling of PSK identify hints was discovered, potentially leading to a double free of the identify hint data.

Solution

Upgrade the openssl packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u18.

For the stable distribution (jessie), these problems have been fixed in version 1.0.1k-3+deb8u2.

See Also

https://security-tracker.debian.org/tracker/CVE-2015-3194

https://security-tracker.debian.org/tracker/CVE-2015-3195

https://security-tracker.debian.org/tracker/CVE-2015-3196

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

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

https://www.debian.org/security/2015/dsa-3413

Plugin Details

Severity: Medium

ID: 87212

File Name: debian_DSA-3413.nasl

Version: 2.16

Type: local

Agent: unix

Published: 12/7/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openssl, 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: 12/4/2015

Reference Information

CVE: CVE-2015-3194, CVE-2015-3195, CVE-2015-3196

DSA: 3413