Linux mount/umount long pathname buffer overflow
| mount-umount-pathname-bo (7156) |  High Risk |
Description:
The Linux util package is vulnerable to a buffer overflow in the mount/umount command, caused by improper bounds checking of user input. By executing mount/umount with a long relative pathname, a local attacker can overflow a buffer and execute arbitrary commands on the system with root privileges.
Platforms Affected:
- Kernel, util-linux prior to 2.10f
- SCO, Caldera OpenLinux 2.3
- SuSE, SuSE Linux 6.0
- SuSE, SuSE Linux 6.1
- SuSE, SuSE Linux 6.2
- SuSE, SuSE Linux 6.3
Remedy:
For SuSE Linux 6.0, 6.1, 6.2, and 6.3:
Upgrade to the latest version of util (2.10f-4 or later), as listed in SuSE Security Announcement #39. See References.
For Caldera OpenLinux Desktop 2.3:
Upgrade to the latest version of util-linux (2.9s-5 or later), as listed in Caldera Systems, Inc. Security Advisory CSSA-2000-002.0. See References.
For Caldera OpenLinux eServer 2.3:
Upgrade to the latest version of util-linux (2.9s-5S or later), as listed in Caldera Systems, Inc. Security Advisory CSSA-2000-002.0. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Privileges
References:
- Caldera International, Inc. Security Advisory CSSA-2000-002.0, Buffer overflow in mount/umount at ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2000-002.0.txt.
- SuSE Security Announcement #39, util < 2.10f at http://www.suse.de/de/security/suse_security_announce_39.txt.
- CVE-2000-0218: Buffer overflow in Linux mount and umount allows local users to gain root privileges via a long relative pathname.
- OSVDB ID: 6980: Linux mount Long Relative Path Overflow
- OSVDB ID: 7004: Linux umount Long Relative Path Overflow
Reported:
Feb 10, 2000
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