CVE-2019-11471: Use After Free
First published: Tue Apr 23 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Struktur Libheif | =1.4.0 | |
| ubuntu/libheif | <1.1.0-2ubuntu0.1~ | 1.1.0-2ubuntu0.1~ |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| ubuntu/libheif | <1.4.0-2 | 1.4.0-2 |
| debian/libheif | 1.11.0-1 1.15.1-1 1.18.1-2 |
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Reference Links
- https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014
- https://github.com/strukturag/libheif/issues/123
- https://launchpad.net/bugs/cve/CVE-2019-11471
- https://security-tracker.debian.org/tracker/CVE-2019-11471
- https://www.cve.org/CVERecord?id=CVE-2019-11471
- https://ubuntu.com/security/notices/USN-6847-1
- https://nvd.nist.gov/vuln/detail/CVE-2019-11471
- https://ubuntu.com/security/CVE-2019-11471
Frequently Asked Questions
What is CVE-2019-11471?
CVE-2019-11471 is a vulnerability in libheif 1.4.0, where a use-after-free occurs in heif::HeifContext::Image::set_alpha_channel in heif_context.h due to mishandling of references to non-existing alpha images.
What is the severity of CVE-2019-11471?
The severity of CVE-2019-11471 is high, with a severity value of 8.8.
How does CVE-2019-11471 affect the software?
CVE-2019-11471 affects the software libheif 1.4.0.
How can CVE-2019-11471 be fixed?
To fix CVE-2019-11471, it is recommended to update to a version of libheif that is not affected by the vulnerability.
What is CWE-416?
CWE-416 is a code quality vulnerability that refers to the use of uninitialized variables.
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