Scientific Linux Security Update : gnupg on SL5.x i386/x86_64

Medium Nessus Plugin ID 70604


The remote Scientific Linux host is missing one or more security updates.


It was found that GnuPG was vulnerable to the Yarom/Falkner flush+reload cache side-channel attack on the RSA secret exponent. An attacker able to execute a process on the logical CPU that shared the L3 cache with the GnuPG process (such as a different local user or a user of a KVM guest running on the same host with the kernel same-page merging functionality enabled) could possibly use this flaw to obtain portions of the RSA secret key. (CVE-2013-4242)

A denial of service flaw was found in the way GnuPG parsed certain compressed OpenPGP packets. An attacker could use this flaw to send specially crafted input data to GnuPG, making GnuPG enter an infinite loop when parsing data. (CVE-2013-4402)

It was found that importing a corrupted public key into a GnuPG keyring database corrupted that keyring. An attacker could use this flaw to trick a local user into importing a specially crafted public key into their keyring database, causing the keyring to be corrupted and preventing its further use. (CVE-2012-6085)

It was found that GnuPG did not properly interpret the key flags in a PGP key packet. GPG could accept a key for uses not indicated by its holder. (CVE-2013-4351)


Update the affected gnupg and / or gnupg-debuginfo packages.

See Also

Plugin Details

Severity: Medium

ID: 70604

File Name: sl_20131024_gnupg_on_SL5_x.nasl

Version: $Revision: 1.1 $

Type: local

Agent: unix

Published: 2013/10/25

Modified: 2013/10/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5.8

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2013/10/24

Reference Information

CVE: CVE-2012-6085, CVE-2013-4242, CVE-2013-4351, CVE-2013-4402