CVE-2015-8922: Null Pointer Dereference
First published: Tue Sep 20 2016(Updated: )
The read_CodersInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted 7z file, related to the _7z_folder struct.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 | |
| Oracle Linux | =7 |
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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/91312
- 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/513
- https://security.gentoo.org/glsa/201701-03
- https://www.suse.com/security/cve/CVE-2015-8922.html
Frequently Asked Questions
What is the severity of CVE-2015-8922?
CVE-2015-8922 has a severity rating that can lead to denial of service due to a NULL pointer dereference.
How do I fix CVE-2015-8922?
To fix CVE-2015-8922, update libarchive to version 3.2.0 or later.
What impact does CVE-2015-8922 have on affected systems?
CVE-2015-8922 can cause a crash of the application processing a crafted 7z file.
Which software versions are vulnerable to CVE-2015-8922?
Vulnerable versions of libarchive are those prior to 3.2.0, including versions up to 3.1.901a.
Is CVE-2015-8922 targeted by attackers?
Yes, CVE-2015-8922 can be exploited by attackers using specially crafted 7z files to cause service disruption.
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- canonical/suse linux enterprise desktop
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- canonical/suse linux enterprise server
- version/suse linux enterprise server/12.0-sp1
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- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.10
- version/ubuntu/16.04
- vendor/oracle
- canonical/oracle linux
- version/oracle linux/7