CVE-2015-8923: Input Validation
First published: Tue Sep 20 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle Libarchive | <=3.1.901a | |
| SUSE Linux Enterprise Software Development Kit | =12.0-sp1 | |
| SUSE Linux Enterprise Desktop | =12.0-sp1 | |
| SUSE Linux Enterprise Server | =12.0-sp1 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.10 | |
| Ubuntu | =16.04 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html
- http://rhn.redhat.com/errata/RHSA-2016-1844.html
- http://www.debian.org/security/2016/dsa-3657
- http://www.openwall.com/lists/oss-security/2016/06/17/2
- http://www.openwall.com/lists/oss-security/2016/06/17/5
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.securityfocus.com/bid/91309
- http://www.ubuntu.com/usn/USN-3033-1
- https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html
- https://github.com/libarchive/libarchive/issues/514
- https://security.gentoo.org/glsa/201701-03
Frequently Asked Questions
What is the severity of CVE-2015-8923?
CVE-2015-8923 is classified as a denial of service vulnerability that can lead to application crashes.
How do I fix CVE-2015-8923?
To fix CVE-2015-8923, you should upgrade libarchive to version 3.2.0 or later.
What kind of attack is facilitated by CVE-2015-8923?
CVE-2015-8923 allows remote attackers to cause a denial of service by using a crafted zip file.
Which versions of libarchive are affected by CVE-2015-8923?
Versions of libarchive prior to 3.2.0, including all versions up to and including 3.1.901a, are affected by CVE-2015-8923.
What systems are impacted by CVE-2015-8923?
CVE-2015-8923 affects various systems, including certain versions of SUSE Linux and Ubuntu.
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- agent/severity
- agent/weakness
- agent/references
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/author
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/libarchive
- canonical/oracle libarchive
- version/oracle libarchive/3.1.901a
- vendor/novell
- canonical/suse linux enterprise software development kit
- version/suse linux enterprise software development kit/12.0-sp1
- canonical/suse linux enterprise desktop
- version/suse linux enterprise desktop/12.0-sp1
- canonical/suse linux enterprise server
- version/suse linux enterprise server/12.0-sp1
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.10
- version/ubuntu/16.04