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Debian Security Advisory DSA 4172-1 (perl - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Multiple vulnerabilities were discovered in the implementation of the Perl programming language. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2018-6797 Brian Carpenter reported that a crafted regular expression could cause a heap buffer write overflow, with control over the bytes written. CVE-2018-6798 Nguyen Duc Manh reported that matching a crafted locale dependent regular expression could cause a heap buffer read overflow and potentially information disclosure. CVE-2018-6913 GwanYeong Kim reported that 'pack()' could cause a heap buffer write overflow with a large item count.
Affected Software
Affected Software
perl on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), these problems have been fixed in version 5.20.2-3+deb8u10. The oldstable distribution (jessie) update contains only a fix for CVE-2018-6913 . For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u3. We recommend that you upgrade your perl packages. For the detailed security status of perl please refer to its security tracker page linked in the references.