NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package lrzip (opens in a new tab)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-UBUNTU1604-LRZIP-325032
- published8 May 2017
- disclosed8 May 2017
Introduced: 8 May 2017
CVE-2017-8847 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lrzip package and not the lrzip package as distributed by Ubuntu.
The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-8847
- https://security-tracker.debian.org/tracker/CVE-2017-8847
- https://security.gentoo.org/glsa/202005-01
- https://github.com/ckolivas/lrzip/issues/67
- https://blogs.gentoo.org/ago/2017/05/07/lrzip-null-pointer-dereference-in-bufreadget-libzpaq-h/