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CVE-2005-2491

UnknownEPSS 4.34%

Last modified

CVE-2005-2491 is a vulnerability of currently unknown severity. Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers to execute arbitrary code via quantifier values in regular expressions, which leads to a heap-based buffer overflow.. EPSS estimates a 4.34% chance of exploitation in the next 30 days.

Description

Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers to execute arbitrary code via quantifier values in regular expressions, which leads to a heap-based buffer overflow.

Metrics

EPSS Probability
4.34%

90.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
PcrePcre5.0
PcrePcre6.0
PcrePcre6.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2005-2491?
Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers to execute arbitrary code via quantifier values in regular expressions, which leads to a heap-based buffer overflow.
How severe is CVE-2005-2491?
Severity scoring for CVE-2005-2491 is pending analysis. The EPSS model estimates a 4.34% probability of exploitation in the next 30 days.
How do I fix CVE-2005-2491?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST