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Debian DLA-264-1 : libmodule-signature-perl security update
high Nessus Plugin ID 84495
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Synopsis
The remote Debian host is missing a security update.Description
John Lightsey discovered multiple vulnerabilities in Module::Signature, a Perl module to manipulate CPAN SIGNATURE files.The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2015-3406
Module::Signature could parse the unsigned portion of the SIGNATURE file as the signed portion due to incorrect handling of PGP signature boundaries.
CVE-2015-3407
Module::Signature incorrectly handled files that are not listed in the SIGNATURE file. This includes some files in the t/ directory that would execute when tests are run.
CVE-2015-3408
Module::Signature used two argument open() calls to read the files when generating checksums from the signed manifest. This allowed to embed arbitrary shell commands into the SIGNATURE file that would be executed during the signature verification process.
CVE-2015-3409
Module::Signature incorrectly handled module loading, allowing to load modules from relative paths in @INC. A remote attacker providing a malicious module could use this issue to execute arbitrary code during signature verification.
For the squeeze distribution, these issues have been fixed in version 0.63-1+squeeze2 of libmodule-signature-perl. Please note that the libtest-signature-perl package was also updated for compatibility with the CVE-2015-3407 fix.
We recommend that you upgrade your libmodule-signature-perl and libtest-signature-perl packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected libmodule-signature-perl package.See Also
https://lists.debian.org/debian-lts-announce/2015/07/msg00001.html
Plugin Details
Severity: High
ID: 84495
File Name: debian_DLA-264.nasl
Version: 2.6
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 7/2/2015
Updated: 1/11/2021
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:libmodule-signature-perl, cpe:/o:debian:debian_linux:6.0
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 7/1/2015
Vulnerability Publication Date: 5/19/2015
Reference Information
CVE: CVE-2015-3406, CVE-2015-3407, CVE-2015-3408, CVE-2015-3409