CVE-2017-16938: Buffer Overflow
First published: Tue Oct 17 2017(Updated: )
A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a denial-of-service attack or other unspecified impact with a maliciously crafted GIF format file, related to an uncontrolled loop in the LZWReadByte function of the gifread.c file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/optipng | <=0.7.6-1<=0.7.5-1 | 0.7.6-1.1 0.7.6-1+deb9u1 0.7.5-1+deb8u2 |
| debian/optipng | 0.7.7-1 0.7.7-2 0.7.7-3 | |
| OptiPNG | =0.7.6 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2017-1000229
- https://security-tracker.debian.org/tracker/CVE-2017-16938
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878839
- https://lists.debian.org/debian-lts-announce/2017/11/msg00042.html
- https://security.gentoo.org/glsa/201801-02
- https://sourceforge.net/p/optipng/bugs/69/
- https://www.debian.org/security/2017/dsa-4058
Frequently Asked Questions
What is the severity of CVE-2017-16938?
CVE-2017-16938 has a high severity due to its potential to cause a denial-of-service attack.
How do I fix CVE-2017-16938?
To fix CVE-2017-16938, update OptiPNG to version 0.7.7 or later.
Which versions of OptiPNG are affected by CVE-2017-16938?
OptiPNG versions 0.7.6 and earlier are affected by CVE-2017-16938.
Can CVE-2017-16938 lead to remote code execution?
CVE-2017-16938 does not directly indicate remote code execution but allows for denial-of-service which could lead to further exploits.
Is CVE-2017-16938 applicable only to Debian systems?
While CVE-2017-16938 is documented in Debian, it can affect any system running the vulnerable versions of OptiPNG.
- collector/debian-bugs
- alias/CVE-2017-16938
- collector/security-tracker-debian
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/event
- agent/severity
- agent/remedy
- agent/references
- agent/author
- agent/tags
- agent/description
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/weakness
- package-manager/debian
- vendor/optipng project
- canonical/optipng
- version/optipng/0.7.6