NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package exempi (opens in a new tab)
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-UBUNTU1804-EXEMPI-613282
- published6 Mar 2018
- disclosed6 Mar 2018
Introduced: 6 Mar 2018
CVE-2018-7731 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exempi package and not the exempi package as distributed by Ubuntu.
An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-7731
- https://security-tracker.debian.org/tracker/CVE-2018-7731
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BCFXKOOATZ2B5G3G7EBXZWVZHEABN4ZV/
- https://bugs.freedesktop.org/show_bug.cgi?id=105247
- https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666
- https://usn.ubuntu.com/3668-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BCFXKOOATZ2B5G3G7EBXZWVZHEABN4ZV/