CVE-2001-0268
First published: Thu May 03 2001(Updated: )
The i386_set_ldt system call in NetBSD 1.5 and earlier, and OpenBSD 2.8 and earlier, when the USER_LDT kernel option is enabled, does not validate a call gate target, which allows local users to gain root privileges by creating a segment call gate in the Local Descriptor Table (LDT) with a target that specifies an arbitrary kernel address.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | <=2.8 | |
| NetBSD current | <=1.5 |
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Reference Links
- http://archives.neohapsis.com/archives/netbsd/2001-q1/0093.html
- http://archives.neohapsis.com/archives/linux/caldera/2001-q4/0014.html
- http://archives.neohapsis.com/archives/bugtraq/2001-02/0353.html
- http://www.openbsd.org/errata.html#userldt
- http://www.kb.cert.org/vuls/id/358960
- http://www.securityfocus.com/bid/2739
- http://www.osvdb.org/6141
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6222
Frequently Asked Questions
What is the severity of CVE-2001-0268?
CVE-2001-0268 has a critical severity rating due to its potential to allow local users to gain root privileges.
How do I fix CVE-2001-0268?
To fix CVE-2001-0268, users should upgrade to a version of OpenBSD later than 2.8 or NetBSD later than 1.5, where this vulnerability is patched.
Who is affected by CVE-2001-0268?
CVE-2001-0268 affects local users of NetBSD 1.5 and earlier, and OpenBSD 2.8 and earlier when the USER_LDT kernel option is enabled.
What does CVE-2001-0268 exploit?
CVE-2001-0268 exploits the lack of validation on a call gate target in the i386_set_ldt system call.
Can CVE-2001-0268 be exploited remotely?
No, CVE-2001-0268 requires local access to the system to exploit the vulnerability.
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