Scientific Linux Security Update : gnupg on SL5.x i386/x86_64 (20131024)

medium Nessus Plugin ID 70604

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Synopsis

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

Description

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)

Solution

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

Plugin Details

Severity: Medium

ID: 70604

File Name: sl_20131024_gnupg_on_SL5_x.nasl

Version: 1.5

Type: local

Agent: unix

Family: Scientific Linux Local Security Checks

Published: 10/25/2013

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

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, p-cpe:/a:fermilab:scientific_linux:gnupg-debuginfo, p-cpe:/a:fermilab:scientific_linux:gnupg

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

Patch Publication Date: 10/24/2013

Vulnerability Publication Date: 1/24/2013

Reference Information

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

Detections

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