FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

e2fsprogs -- heap buffer overflow

Affected packages
e2fsprogs < 1.40.3


VuXML ID 299e3f81-aee7-11dc-b781-0016179b2dd5
Discovery 2007-12-07
Entry 2007-12-20

Theodore Y. Ts'o reports:

Fix a potential security vulnerability where an untrusted filesystem can be corrupted in such a way that a program using libext2fs will allocate a buffer which is far too small. This can lead to either a crash or potentially a heap-based buffer overflow crash. No known exploits exist, but main concern is where an untrusted user who possesses privileged access in a guest Xen environment could corrupt a filesystem which is then accessed by thus allowing the untrusted user to gain privileged access in the host OS. Thanks to the McAfee AVERT Research group for reporting this issue.


Bugtraq ID 26772
CVE Name CVE-2007-5497