Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a stack-based buffer overflow.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162171.html | third party advisory vendor advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1234886 | issue tracking vdb entry third party advisory |
| https://github.com/devttys0/sasquatch/pull/5 | third party advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162226.html | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/75272 | vdb entry third party advisory |
| https://security.gentoo.org/glsa/201701-73 | vdb entry third party advisory vendor advisory |
| https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1 | third party advisory |