CVE-2020-36430: Buffer Overflow
First published: Tue Jul 20 2021(Updated: )
libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libass Project Libass | >=0.15.0<0.15.1 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml
- https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/
- https://security.gentoo.org/glsa/202208-13
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/
Frequently Asked Questions
What is CVE-2020-36430?
CVE-2020-36430 is a vulnerability in libass 0.15.x before 0.15.1 that allows for a heap-based buffer overflow.
How severe is CVE-2020-36430?
CVE-2020-36430 has a severity rating of 7.8 (High).
Which software versions are affected by CVE-2020-36430?
Versions 0.15.0 and earlier of libass are affected by CVE-2020-36430.
How can I fix CVE-2020-36430?
To fix CVE-2020-36430, update libass to version 0.15.1 or later.
Where can I find more information about CVE-2020-36430?
You can find more information about CVE-2020-36430 at the following references: [1], [2], [3].
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- vendor/libass project
- canonical/libass project libass
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- vendor/fedoraproject
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- version/fedoraproject fedora/34