CVE-2001-0268
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.59% probability · 46th percentile
- CISA KEV
- Not listed
- Affected
- netbsd/netbsd · openbsd/openbsd
- Source
- cve@mitre.org
References
- http://archives.neohapsis.com/archives/bugtraq/2001-02/0353.html
- http://archives.neohapsis.com/archives/linux/caldera/2001-q4/0014.html
- http://archives.neohapsis.com/archives/netbsd/2001-q1/0093.htmlPatch, Vendor Advisory
- http://www.kb.cert.org/vuls/id/358960US Government Resource
- http://www.openbsd.org/errata.html#userldt
- http://www.osvdb.org/6141
- http://www.securityfocus.com/bid/2739
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6222
- http://archives.neohapsis.com/archives/bugtraq/2001-02/0353.html
- http://archives.neohapsis.com/archives/linux/caldera/2001-q4/0014.html
- http://archives.neohapsis.com/archives/netbsd/2001-q1/0093.htmlPatch, Vendor Advisory
- http://www.kb.cert.org/vuls/id/358960US Government Resource
- http://www.openbsd.org/errata.html#userldt
- http://www.osvdb.org/6141
- http://www.securityfocus.com/bid/2739
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6222
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.