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Debian DLA-132-1 : openssl security update (FREAK)
medium Nessus Plugin ID 82115
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Synopsis
The remote Debian host is missing a security 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-2014-3570
Pieter Wuille of Blockstream reported that the bignum squaring (BN_sqr) may produce incorrect results on some platforms, which might make it easier for remote attackers to defeat cryptographic protection mechanisms.
CVE-2014-3571
Markus Stenberg of Cisco Systems, Inc. reported that a carefully crafted DTLS message can cause a segmentation fault in OpenSSL due to a NULL pointer dereference. A remote attacker could use this flaw to mount a denial of service attack.
CVE-2014-3572
Karthikeyan Bhargavan of the PROSECCO team at INRIA reported that an OpenSSL client would accept a handshake using an ephemeral ECDH ciphersuite if the server key exchange message is omitted. This allows remote SSL servers to conduct ECDHE-to-ECDH downgrade attacks and trigger a loss of forward secrecy.
CVE-2014-8275
Antti Karjalainen and Tuomo Untinen of the Codenomicon CROSS project and Konrad Kraszewski of Google reported various certificate fingerprint issues, which allow remote attackers to defeat a fingerprint-based certificate-blacklist protection mechanism.
CVE-2015-0204
Karthikeyan Bhargavan of the PROSECCO team at INRIA reported that an OpenSSL client will accept the use of an ephemeral RSA key in a non-export RSA key exchange ciphersuite, violating the TLS standard.
This allows remote SSL servers to downgrade the security of the session.
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/2015/01/msg00005.html
Plugin Details
Severity: Medium
ID: 82115
File Name: debian_DLA-132.nasl
Version: 1.10
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 3/26/2015
Updated: 1/11/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
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: 1/11/2015
Reference Information
CVE: CVE-2014-3570, CVE-2014-3571, CVE-2014-3572, CVE-2014-8275, CVE-2015-0204