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Debian Security Advisory DSA 4172-1 (perl - security update)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

3 years ago

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.

Common Vulnerabilities and Exposures (CVE)