What’s Vulnerable › Vulnerabilities

CVE-2001-0268

• Severity: high (CVSS 7.2 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2001-05-03 · updated 2026-06-16

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.

Affected products

• Netbsd: through 1.5
• OpenBSD: through 2.8

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.html
• http://www.kb.cert.org/vuls/id/358960
• 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.html
• http://www.kb.cert.org/vuls/id/358960

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