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CVE-2017-12837

UnknownEPSS 6.21%

Last modified

CVE-2017-12837 is a vulnerability of currently unknown severity. Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.. EPSS estimates a 6.21% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.

Metrics

EPSS Probability
6.21%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PerlPerl<= 5.24.2
PerlPerl5.26.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-12837?
Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.
How severe is CVE-2017-12837?
Severity scoring for CVE-2017-12837 is pending analysis. The EPSS model estimates a 6.21% probability of exploitation in the next 30 days.
How do I fix CVE-2017-12837?
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.

Are you affected by CVE-2017-12837?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST