Detections
Analytics
Ubuntu 5.04 / 5.10 / 6.06 LTS : openssl vulnerability (USN-339-1)
medium Nessus Plugin ID 27918
Synopsis
The remote Ubuntu host is missing one or more security-related patches.Description
Philip Mackenzie, Marius Schilder, Jason Waddle and Ben Laurie of Google Security discovered that the OpenSSL library did not sufficiently check the padding of PKCS #1 v1.5 signatures if the exponent of the public key is 3 (which is widely used for CAs). This could be exploited to forge signatures without the need of the secret key.Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 27918
File Name: ubuntu_USN-339-1.nasl
Version: 1.17
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 11/10/2007
Updated: 1/19/2021
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:canonical:ubuntu_linux:libssl-dev, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.7, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.8, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.8-dbg, p-cpe:/a:canonical:ubuntu_linux:openssl, cpe:/o:canonical:ubuntu_linux:5.04, cpe:/o:canonical:ubuntu_linux:5.10, cpe:/o:canonical:ubuntu_linux:6.06:-:lts
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 9/5/2006