Use After Free Affecting libheif package, versions <1.4.0-2
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-UBUNTU2104-LIBHEIF-1266394
- published23 Apr 2019
- disclosed23 Apr 2019
Introduced: 23 Apr 2019
CVE-2019-11471 (opens in a new tab)How to fix?
Upgrade Ubuntu:21.04 libheif to version 1.4.0-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libheif package and not the libheif package as distributed by Ubuntu.
See How to fix? for Ubuntu:21.04 relevant fixed versions and status.
libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to non-existing alpha images.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-11471
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11471
- https://security-tracker.debian.org/tracker/CVE-2019-11471
- https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014
- https://github.com/strukturag/libheif/issues/123