procfs vulnerability
Ted Unangst <[email protected]> Thu, 13 May 2004 04:08:48 -0400 (EDT)
| Newsgroups | gmane.os.openbsd.security.announce |
|---|---|
| Message-ID | <[email protected]> |
Incorrect bounds checking in several procfs functions could allow an unprivileged malicious user to read arbitrary kernel memory, with the potential to use this information to escalate privilege. OpenBSD does not mount the proc filesystem by default, and we continue to recommend against its use. The cvs -stable branches have been updated to contain a fix, which is also available in patch form for 3.4 and 3.5. Credit goes to Deprotect Advisories <[email protected]> for identification of the bug. Patches: ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.5/common/006_procfs.patch ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/020_procfs.patch -- desire is not an occupation