CVE-2017-6312

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-03-10 · updated 2026-06-17
Weakness: CWE-190

Description

Integer overflow in io-ico.c in gdk-pixbuf allows context-dependent attackers to cause a denial of service (segmentation fault and application crash) via a crafted image entry offset in an ICO file, which triggers an out-of-bounds read, related to compiler optimizations.

Affected products

Debian Linux: 8.0
Fedoraproject Fedora: 30, 31
GNOME Gdk-Pixbuf: before 2.36.12 — fixed in 2.36.12

How to fix

Upgrade to a fixed version: GNOME Gdk-Pixbuf 2.36.12. Check the vendor advisory for mitigations.

References

http://mov.sx/2017/02/21/bug-hunting-gdk-pixbuf.html
http://www.openwall.com/lists/oss-security/2017/02/21/4
http://www.openwall.com/lists/oss-security/2017/02/26/1
http://www.securityfocus.com/bid/96779
https://bugzilla.gnome.org/show_bug.cgi?id=779012
https://lists.debian.org/debian-lts-announce/2019/12/msg00025.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SJF5ARFOX4BFUK6YCBKGAKBQYECO3AI2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSAZ6UCKKXC5VOWXGWQHOX2ZBLLATIOT/
https://security.gentoo.org/glsa/201709-08
http://mov.sx/2017/02/21/bug-hunting-gdk-pixbuf.html
http://www.openwall.com/lists/oss-security/2017/02/21/4
http://www.openwall.com/lists/oss-security/2017/02/26/1

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