Title: OpenBSD and NetBSD 'printf(1)' Format String Parsing Denial of Service Vulnerability
Severity: MODERATE
Description:
OpenBSD and NetBSD are prone to a denial-of-service vulnerability because they fail to properly parse format strings containing multiple widths or precisions to the 'printf(1)' function.
An attacker can exploit this issue to cause applications using the vulnerable call to crash with a segmentation fault, denying service to legitimate users.
The following are reported vulnerable:
OpenBSD 4.6
NetBSD 5.0.1
Affected Products:
- NetBSD NetBSD 5.0.1
- OpenBSD OpenBSD 4.6
References:
- NetBSD: NetBSD Homepage
- NetBSD: Revision 1.33.4.1
- OpenBSD: OpenBSD Homepage
- OpenBSD: Revision 1.15
- SecurityReason: Multiple BSD printf(1) and multiple dtoa/*printf(3) vulnerabilities
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