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CVE-2011-3607

UnknownEPSS 4.72%

Last modified

CVE-2011-3607 is a vulnerability of currently unknown severity. Integer overflow in the ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, allows local users to gain privileges via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, leading to a heap-based buffer overflow.. EPSS estimates a 4.72% chance of exploitation in the next 30 days.

Description

Integer overflow in the ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, allows local users to gain privileges via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, leading to a heap-based buffer overflow.

Metrics

EPSS Probability
4.72%

90.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
ApacheHttp Server2.0—
ApacheHttp Server2.0.9—
ApacheHttp Server2.0.28—
ApacheHttp Server2.0.32—
ApacheHttp Server2.0.34Beta
ApacheHttp Server2.0.35—
ApacheHttp Server2.0.36—
ApacheHttp Server2.0.37—
ApacheHttp Server2.0.38—
ApacheHttp Server2.0.39—
ApacheHttp Server2.0.40—
ApacheHttp Server2.0.41—
ApacheHttp Server2.0.42—
ApacheHttp Server2.0.43—
ApacheHttp Server2.0.44—
ApacheHttp Server2.0.45—
ApacheHttp Server2.0.46—
ApacheHttp Server2.0.47—
ApacheHttp Server2.0.48—
ApacheHttp Server2.0.49—
ApacheHttp Server2.0.50—
ApacheHttp Server2.0.51—
ApacheHttp Server2.0.52—
ApacheHttp Server2.0.53—
ApacheHttp Server2.0.54—
ApacheHttp Server2.0.55—
ApacheHttp Server2.0.56—
ApacheHttp Server2.0.57—
ApacheHttp Server2.0.58—
ApacheHttp Server2.0.59—
ApacheHttp Server2.0.60—
ApacheHttp Server2.0.61—
ApacheHttp Server2.0.63—
ApacheHttp Server2.0.64—
ApacheHttp Server2.2.0—
ApacheHttp Server2.2.1—
ApacheHttp Server2.2.2—
ApacheHttp Server2.2.3—
ApacheHttp Server2.2.4—
ApacheHttp Server2.2.6—
ApacheHttp Server2.2.8—
ApacheHttp Server2.2.9—
ApacheHttp Server2.2.10—
ApacheHttp Server2.2.11—
ApacheHttp Server2.2.12—
ApacheHttp Server2.2.13—
ApacheHttp Server2.2.14—
ApacheHttp Server2.2.15—
ApacheHttp Server2.2.16—
ApacheHttp Server2.2.18—

Showing 50 of 53 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-3607?
Integer overflow in the ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, allows local users to gain privileges via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, leading to a heap-based buffer overflow.
How severe is CVE-2011-3607?
Severity scoring for CVE-2011-3607 is pending analysis. The EPSS model estimates a 4.72% probability of exploitation in the next 30 days.
How do I fix CVE-2011-3607?
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