Improper Input Validation Affecting libarchive package, versions <3.2.0-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN11-LIBARCHIVE-521658
- published20 Sept 2016
- disclosed20 Sept 2016
Introduced: 20 Sep 2016
CVE-2015-8923 (opens in a new tab)How to fix?
Upgrade Debian:11 libarchive to version 3.2.0-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
The process_extra function in libarchive before 3.2.0 uses the size field and a signed number in an offset, which allows remote attackers to cause a denial of service (crash) via a crafted zip file.
References
- https://security-tracker.debian.org/tracker/CVE-2015-8923
- http://www.debian.org/security/2016/dsa-3657
- https://security.gentoo.org/glsa/201701-03
- https://github.com/libarchive/libarchive/issues/514
- https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.openwall.com/lists/oss-security/2016/06/17/2
- http://www.openwall.com/lists/oss-security/2016/06/17/5
- http://rhn.redhat.com/errata/RHSA-2016-1844.html
- http://www.securityfocus.com/bid/91309
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-8923
- http://www.ubuntu.com/usn/USN-3033-1