Integer overflow in io-ico.c in gdk-pixbuf allows context-dependent attackers to...

Vulnerability 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.

References

• http://www.openwall.com/lists/oss-security/2017/02/21/4
• https://bugzilla.gnome.org/show_bug.cgi?id=779012
• http://www.securityfocus.com/bid/96779
• http://mov.sx/2017/02/21/bug-hunting-gdk-pixbuf.html
• http://www.openwall.com/lists/oss-security/2017/02/26/1
• https://security.gentoo.org/glsa/201709-08
• 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/