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…

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.

Scores

EPSS (exploitation in 30 days)

0.59% · top 52% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (8)

• CSSA-2001-SCO.35 (opens in a new tab)vendor-advisoryx_refsource_CALDERAx_transferred
• NetBSD-SA:2001-002 (opens in a new tab)vendor-advisoryx_refsource_NETBSDx_transferred
• VU#358960 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
• user-ldt-validation(6222) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 2739 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 20010302 The USER_LDT kernel option allows an attacker to gain access to privileged areas of kernel memory. (opens in a new tab)vendor-advisoryx_refsource_OPENBSDx_transferred
• 20010219 Re: your mail (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 6141 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2001-0268](https://trackcve.app/badge/CVE-2001-0268.svg)](https://trackcve.app/cve/CVE-2001-0268)

Record last updated 8 Aug 2024, 04:14 UTC.