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Debian DSA-061-1 : gnupg - printf format attack

high Nessus Plugin ID 14898

Synopsis

The remote Debian host is missing a security-related update.

Description

The version of GnuPG (GNU Privacy Guard, an OpenPGP implementation) as distributed in Debian GNU/Linux 2.2 suffers from two problems :

 - fish stiqz reported on bugtraq that there was a printf format problem in the do_get() function: it printed a prompt which included the filename that was being decrypted without checking for possible printf format attacks. This could be exploited by tricking someone into decrypting a file with a specially crafted filename.
 - The second bug is related to importing secret keys: when gnupg imported a secret key it would immediately make the associated public key fully trusted which changes your web of trust without asking for a confirmation. To fix this you now need a special option to import a secret key.

Both problems have been fixed in version 1.0.6-0potato1.

Solution

Upgrade the affected gnupg package.

See Also

http://www.debian.org/security/2001/dsa-061

Plugin Details

Severity: High

ID: 14898

File Name: debian_DSA-061.nasl

Version: 1.18

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnupg, cpe:/o:debian:debian_linux:2.2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/16/2001

Reference Information

CVE: CVE-2001-0522

BID: 2797

DSA: 061