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GLSA-200502-13 : Perl: Vulnerabilities in perl-suid wrapper

medium Nessus Plugin ID 16450

Synopsis

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

Description

The remote host is affected by the vulnerability described in GLSA-200502-13 (Perl: Vulnerabilities in perl-suid wrapper)

 perl-suid scripts honor the PERLIO_DEBUG environment variable and write to that file with elevated privileges (CAN-2005-0155).
 Furthermore, calling a perl-suid script with a very long path while PERLIO_DEBUG is set could trigger a buffer overflow (CAN-2005-0156).
 Impact :

 A local attacker could set the PERLIO_DEBUG environment variable and call existing perl-suid scripts, resulting in file overwriting and potentially the execution of arbitrary code with root privileges.
 Workaround :

 You are not vulnerable if you do not have the perlsuid USE flag set or do not use perl-suid scripts.

Solution

All Perl users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose dev-lang/perl

See Also

https://security.gentoo.org/glsa/200502-13

Plugin Details

Severity: Medium

ID: 16450

File Name: gentoo_GLSA-200502-13.nasl

Version: 1.18

Type: local

Published: 2/14/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:perl, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/11/2005

Vulnerability Publication Date: 2/2/2005

Reference Information

CVE: CVE-2005-0155, CVE-2005-0156

GLSA: 200502-13