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Debian DLA-247-1 : openssl security update (Logjam)
high Nessus Plugin ID 84253
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Synopsis
The remote Debian host is missing a security update.Description
Multiple vulnerabilities were discovered in OpenSSL, a Secure Sockets Layer toolkit.CVE-2014-8176
Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered that an invalid memory free could be triggered when buffering DTLS data.
This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code. This issue only affected the oldstable distribution (wheezy).
CVE-2015-1789
Robert Swiecki and Hanno B??ck discovered that the X509_cmp_time function could read a few bytes out of bounds. This could allow remote attackers to cause a denial of service (crash) via crafted certificates and CRLs.
CVE-2015-1790
Michal Zalewski discovered that the PKCS#7 parsing code did not properly handle missing content which could lead to a NULL pointer dereference. This could allow remote attackers to cause a denial of service (crash) via crafted ASN.1-encoded PKCS#7 blobs.
CVE-2015-1791
Emilia K??sper discovered that a race condition could occur due to incorrect handling of NewSessionTicket in a multi-threaded client, leading to a double free. This could allow remote attackers to cause a denial of service (crash).
CVE-2015-1792
Johannes Bauer discovered that the CMS code could enter an infinite loop when verifying a signedData message, if presented with an unknown hash function OID. This could allow remote attackers to cause a denial of service.
Additionally OpenSSL will now reject handshakes using DH parameters shorter than 768 bits as a countermeasure against the Logjam attack (CVE-2015-4000).
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/2015/06/msg00013.html
Plugin Details
Severity: High
ID: 84253
File Name: debian_DLA-247.nasl
Version: 2.14
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 6/18/2015
Updated: 12/5/2022
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: High
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: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:libssl0.9.8, p-cpe:/a:debian:debian_linux:libssl0.9.8-dbg, p-cpe:/a:debian:debian_linux:libssl-dev, cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libcrypto0.9.8-udeb, p-cpe:/a:debian:debian_linux:openssl
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 6/17/2015
Reference Information
CVE: CVE-2014-8176, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791, CVE-2015-1792, CVE-2015-4000