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Debian Security Advisory DSA-4172-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
April 14, 2018                        https://www.debian.org/security/faq
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Package        : perl
CVE ID         : CVE-2018-6797 CVE-2018-6798 CVE-2018-6913

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.

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 at:
https://security-tracker.debian.org/tracker/perl

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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