High severity · published Nov 24, 2017
CVE-2017-16938
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,…
7.8
CVSS
1.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Optipng · Optipng Project
0.7.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16938
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-16938
lists.debian.org
https://lists.debian.org/debian-lts-announce/2017/11/msg00042.html
security.gentoo.org
https://security.gentoo.org/glsa/201801-02
Patch
https://sourceforge.net/p/optipng/bugs/69/
www.debian.org
https://www.debian.org/security/2017/dsa-4058
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