CVE-2019-15133: Divide by Zero
First published: Sat Aug 17 2019(Updated: )
In GIFLIB before 2019-02-16, a malformed GIF file triggers a divide-by-zero exception in the decoder function DGifSlurp in dgif_lib.c if the height field of the ImageSize data structure is equal to zero.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GifLib Project GifLib | <5.1.7 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.04 | |
| Debian Debian Linux | =10.0 | |
| debian/giflib | 5.1.9-2 5.2.1-2.5 5.2.2-1 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13008
- https://lists.debian.org/debian-lts-announce/2022/12/msg00008.html
- https://usn.ubuntu.com/4107-1/
- https://launchpad.net/bugs/cve/CVE-2019-15133
- https://sourceforge.net/p/giflib/code/ci/799eb6a3af8a3dd81e2429bf11a72a57e541f908/
- https://sourceforge.net/p/giflib/bugs/119/
- https://security-tracker.debian.org/tracker/CVE-2019-15133
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15133
- https://nvd.nist.gov/vuln/detail/CVE-2019-15133
- https://ubuntu.com/security/CVE-2019-15133
Frequently Asked Questions
What is CVE-2019-15133?
CVE-2019-15133 is a vulnerability in GIFLIB that triggers a divide-by-zero exception in the decoder function DGifSlurp in dgif_lib.c if the height field of the ImageSize data structure is equal to zero.
How does CVE-2019-15133 affect the software?
CVE-2019-15133 affects GIFLIB before 2019-02-16 and can cause a divide-by-zero exception.
What is the severity of CVE-2019-15133?
CVE-2019-15133 has a severity score of 6.5, which is considered medium.
How can I fix CVE-2019-15133?
To fix CVE-2019-15133, update GIFLIB to versions 5.1.4-3+deb10u1, 5.1.9-2, or 5.2.1-2.5.
Where can I find more information about CVE-2019-15133?
More information about CVE-2019-15133 can be found at the following references: [CVE-2019-15133](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15133), [OSS-Fuzz Issue 13008](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13008), [GIFLIB Bug 119](https://sourceforge.net/p/giflib/bugs/119/)
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