CVE Catalog

CVE-2001-0268

High
Published: Translated: NVD NIST

Summary

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.

Risk Assessment

Local users can gain unauthorized access to administrator privileges, posing a serious threat to the integrity and security of the system.

Recommendation

It is recommended to update the system to a version that is not vulnerable to this flaw and to disable the USER_LDT option if it is not necessary.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS