Debian DSA-2265-1 : perl - lack of tainted flag propagation

medium Nessus Plugin ID 55280

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Synopsis

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

Description

Mark Martinec discovered that Perl incorrectly clears the tainted flag on values returned by case conversion functions such as 'lc'. This may expose preexisting vulnerabilities in applications which use these functions while processing untrusted input. No such applications are known at this stage. Such applications will cease to work when this security update is applied because taint checks are designed to prevent such unsafe use of untrusted input data.

Solution

Upgrade the perl packages.

For the oldstable distribution (lenny), this problem has been fixed in version 5.10.0-19lenny4.

For the stable distribution (squeeze), this problem has been fixed in version 5.10.1-17squeeze1.

Plugin Details

Severity: Medium

ID: 55280

File Name: debian_DSA-2265.nasl

Version: 1.12

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/21/2011

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:perl, cpe:/o:debian:debian_linux:5.0, cpe:/o:debian:debian_linux:6.0

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: 6/20/2011

Reference Information

CVE: CVE-2011-1487

BID: 47124

DSA: 2265

Detections

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