CVE-2015-8863: Buffer Overflow
First published: Sun Oct 18 2015(Updated: )
Off-by-one error in the tokenadd function in jv_parse.c in jq allows remote attackers to cause a denial of service (crash) via a long JSON-encoded number, which triggers a heap-based buffer overflow.
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/jq | <=1.5+dfsg-1<=1.4-2.1 | |
| debian/jq | 1.6-2.1 1.7.1-3 | |
| SUSE Linux | =42.1 | |
| SUSE Linux | =13.2 | |
| Ubuntu Jq | <=1.5 |
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Reference Links
- http://lcamtuf.coredump.cx/afl/
- https://github.com/stedolan/jq/issues/995
- https://security-tracker.debian.org/tracker/CVE-2015-8863
- https://security-tracker.debian.org/tracker/CVE-2016-4074
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802231
- https://github.com/stedolan/jq/commit/8eb1367ca44e772963e704a700ef72ae2e12babd
- https://www.openwall.com/lists/oss-security/2016/04/23/1
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00012.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00014.html
- http://rhn.redhat.com/errata/RHSA-2016-1098.html
- http://rhn.redhat.com/errata/RHSA-2016-1099.html
- http://rhn.redhat.com/errata/RHSA-2016-1106.html
- http://www.openwall.com/lists/oss-security/2016/04/23/1
- http://www.openwall.com/lists/oss-security/2016/04/23/2
- https://security.gentoo.org/glsa/201612-20
Frequently Asked Questions
What is the severity of CVE-2015-8863?
CVE-2015-8863 has a medium severity rating because it can lead to a denial of service through a heap-based buffer overflow.
How do I fix CVE-2015-8863?
To fix CVE-2015-8863, upgrade jq to version 1.6-2.1 or later if you are using Debian or ensure you are using a version higher than 1.5 in other distributions.
What software is affected by CVE-2015-8863?
CVE-2015-8863 affects jq versions up to and including 1.5 and versions of jq used in specific distributions like Debian and openSUSE.
What kind of attack does CVE-2015-8863 enable?
CVE-2015-8863 allows remote attackers to execute a denial of service attack by exploiting an off-by-one error in the tokenadd function.
Is CVE-2015-8863 still a threat today?
While CVE-2015-8863 has been addressed in newer versions, systems running vulnerable versions remain at risk if not updated.
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- version/suse linux/13.2
- vendor/jq project
- canonical/ubuntu jq
- version/ubuntu jq/1.5