Integer overflow in the regular expression engine in Perl 5.8.x allows context-dependent attackers to cause a denial of service (stack consumption and application crash) by matching a crafted regular expression against a long string.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
Official Statement from Red Hat (04/22/2010)
The Red Hat Security Response Team has rated this issue as having low security impact. The risks associated with fixing this bug are greater than the low severity security risk. We therefore currently have no plans to fix this flaw in Red Hat Enterprise Linux 3, 4, or 5.
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[oss-security] 20100408 CVE Request -- perl v5.8.* -- stack overflow by processing certain regex (Gentoo BTS#313565 / RH BZ#580605)
[oss-security] 20100414 Re: CVE Request -- perl v5.8.* -- stack overflow by processing certain regex (Gentoo BTS#313565 / RH BZ#580605)