Debian Security Advisory DSA 3982-1 (perl - security update)

Published: 2017-09-20 22:00:00
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
perl on Debian Linux

Recommendations:
For the oldstable distribution (jessie), these problems have been fixed in version 5.20.2-3+deb8u9. For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u2. For the testing distribution (buster), these problems have been fixed in version 5.26.0-8. For the unstable distribution (sid), these problems have been fixed in version 5.26.0-8. We recommend that you upgrade your perl Linux Distribution Packages.

Summary:
Multiple vulnerabilities were discovered in the implementation of the Perl programming language. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2017-12837 Jakub Wilk reported a heap buffer overflow flaw in the regular expression compiler, allowing a remote attacker to cause a denial of service via a specially crafted regular expression with the case-insensitive modifier. CVE-2017-12883 Jakub Wilk reported a buffer over-read flaw in the regular expression parser, allowing a remote attacker to cause a denial of service or information leak.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-12837
https://nvd.nist.gov/vuln/detail/CVE-2017-12883

References:

http://www.debian.org/security/2017/dsa-3982.html

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Severity
Medium
CVSS Score
6.4

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