What’s Vulnerable › Vulnerabilities

CVE-2002-1420

• Severity: high (CVSS 7.2 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-04-11 · updated 2026-06-16

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.

Affected products

• OpenBSD: 3.0, 3.1

References

• http://marc.info/?l=bugtraq&m=102918817012863&w=2
• http://www.iss.net/security_center/static/9809.php
• http://www.kb.cert.org/vuls/id/259787
• http://www.osvdb.org/7554
• http://www.securityfocus.com/bid/5442
• http://marc.info/?l=bugtraq&m=102918817012863&w=2
• http://www.iss.net/security_center/static/9809.php
• http://www.kb.cert.org/vuls/id/259787
• http://www.osvdb.org/7554
• http://www.securityfocus.com/bid/5442

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