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Ubuntu 5.04 / 5.10 / 6.06 LTS : gnutls11, gnutls12 vulnerability (USN-348-1)

medium Nessus Plugin ID 27928

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

The GnuTLS 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

https://usn.ubuntu.com/348-1/

Plugin Details

Severity: Medium

ID: 27928

File Name: ubuntu_USN-348-1.nasl

Version: 1.16

Type: local

Agent: unix

Published: 11/10/2007

Updated: 1/19/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libgnutls12-dbg, cpe:/o:canonical:ubuntu_linux:5.04, p-cpe:/a:canonical:ubuntu_linux:libgnutls12, cpe:/o:canonical:ubuntu_linux:5.10, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, p-cpe:/a:canonical:ubuntu_linux:libgnutls-dev, p-cpe:/a:canonical:ubuntu_linux:gnutls-bin, p-cpe:/a:canonical:ubuntu_linux:libgnutls11-dev, p-cpe:/a:canonical:ubuntu_linux:libgnutls11-dbg, p-cpe:/a:canonical:ubuntu_linux:libgnutls11

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/18/2006

Reference Information

CVE: CVE-2006-4790

BID: 20027

USN: 348-1