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Ubuntu 12.04 LTS : python-crypto vulnerability (USN-3199-3)

critical Nessus Plugin ID 102814

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Synopsis

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

Description

USN-3199-1 fixed a vulnerability in Python Crypto. This update provides the corresponding update for Ubuntu 12.04 ESM.

It was discovered that the ALGnew function in block_templace.c in the Python Cryptography Toolkit contained a heap-based buffer overflow vulnerability. A remote attacker could use this flaw to execute arbitrary code by using a crafted initialization vector parameter.

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 python-crypto and / or python3-crypto packages.

See Also

https://usn.ubuntu.com/3199-3/

Plugin Details

Severity: Critical

ID: 102814

File Name: ubuntu_USN-3199-3.nasl

Version: 3.7

Type: local

Agent: unix

Published: 8/29/2017

Updated: 1/12/2023

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

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:12.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-crypto, p-cpe:/a:canonical:ubuntu_linux:python-crypto

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/28/2017

Vulnerability Publication Date: 2/15/2017

Reference Information

CVE: CVE-2013-7459

USN: 3199-3