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CVE-2002-1420
Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative…
High7.2EPSS 0.33%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter, which satisfies the boundary check as a signed integer, but is later used as an unsigned integer during a data copying operation.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (2 Nov 2026)
Loading the EPSS history…
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 (5)
- 5442 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openbsd-select-bo(9809) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- VU#259787 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 7554 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20020812 OpenBSD Security Advisory: Select Boundary Condition (fwd) (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)
Record last updated .