[SECURITY] [DSA 4104-1] p7zip security update

ID DEBIAN:DSA-4104-1:079A5
Type debian
Reporter Debian
Modified 2018-02-04T20:42:57


Debian Security Advisory DSA-4104-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso February 04, 2018 https://www.debian.org/security/faq

Package : p7zip CVE ID : CVE-2017-17969 Debian Bug : 888297

'landave' discovered a heap-based buffer overflow vulnerability in the NCompress::NShrink::CDecoder::CodeReal method in p7zip, a 7zr file archiver with high compression ratio. A remote attacker can take advantage of this flaw to cause a denial-of-service or, potentially the execution of arbitrary code with the privileges of the user running p7zip, if a specially crafted shrinked ZIP archive is processed.

For the oldstable distribution (jessie), this problem has been fixed in version 9.20.1~dfsg.1-4.1+deb8u3.

For the stable distribution (stretch), this problem has been fixed in version 16.02+dfsg-3+deb9u1.

We recommend that you upgrade your p7zip packages.

For the detailed security status of p7zip please refer to its security tracker page at: https://security-tracker.debian.org/tracker/p7zip

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