CVE-2002-1420

OpenBSD <= 3.1 - Arbitrary Kernel Memory Write via Negative Size Parameter in select()

Title source: llm

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.

References (5)

Core 5

Core References

Patch, Vendor Advisory vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/5442

Patch, Vendor Advisory vdb-entry x_refsource_xf

http://www.iss.net/security_center/static/9809.php

US Government Resource third-party-advisory x_refsource_cert-vn

http://www.kb.cert.org/vuls/id/259787

Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb

http://www.osvdb.org/7554

Mailing List mailing-list x_refsource_bugtraq

http://marc.info/?l=bugtraq&m=102918817012863&w=2

Scores

EPSS 0.0051

EPSS Percentile 66.7%

Details

Status published

Products (2)

openbsd/openbsd 3.0

openbsd/openbsd 3.1

Published Apr 11, 2003

Tracked Since Feb 18, 2026