The kernfs_xread function in kernfs in NetBSD 1.6 through 2.1, and OpenBSD 3.8, does not properly validate file offsets against negative…

Description

The kernfs_xread function in kernfs in NetBSD 1.6 through 2.1, and OpenBSD 3.8, does not properly validate file offsets against negative 32-bit values that occur as a result of truncation, which allows local users to read arbitrary kernel memory and gain privileges via the lseek system call.

Scores

EPSS (exploitation in 30 days)

0.37% · top 69% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (8)

• 18712 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.securitylab.net/research/2006/02/advisory_netbsd_openbsd_kernfs.html (opens in a new tab)x_refsource_MISCx_transferred
• 405 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
• 16173 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 18388 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22293 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• netbsd-kernfs-memory-disclosure(24035) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 20060202 [SLAB] NetBSD / OpenBSD kernfs_xread patch evasion (opens in a new tab)mailing-listx_refsource_BUGTRAQx_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-2006-0145](https://trackcve.app/badge/CVE-2006-0145.svg)](https://trackcve.app/cve/CVE-2006-0145)

Record last updated 7 Aug 2024, 16:25 UTC.