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CVE-2012-4922

UnknownEPSS 2.23%

Last modified

CVE-2012-4922 is a vulnerability of currently unknown severity. The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.. EPSS estimates a 2.23% chance of exploitation in the next 30 days.

Description

The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.

Metrics

EPSS Probability
2.23%

80.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
TorprojectTor<= 0.2.2.38—
TorprojectTor0.0.2—
TorprojectTor0.0.3—
TorprojectTor0.0.4—
TorprojectTor0.0.5—
TorprojectTor0.0.6—
TorprojectTor0.0.6.1—
TorprojectTor0.0.6.2—
TorprojectTor0.0.7—
TorprojectTor0.0.7.1—
TorprojectTor0.0.7.2—
TorprojectTor0.0.7.3—
TorprojectTor0.0.8.1—
TorprojectTor0.0.9.1—
TorprojectTor0.0.9.2—
TorprojectTor0.0.9.3—
TorprojectTor0.0.9.4—
TorprojectTor0.0.9.5—
TorprojectTor0.0.9.6—
TorprojectTor0.0.9.7—
TorprojectTor0.0.9.8—
TorprojectTor0.0.9.9—
TorprojectTor0.0.9.10—
TorprojectTor0.1.0.10—
TorprojectTor0.1.0.11—
TorprojectTor0.1.0.12—
TorprojectTor0.1.0.13—
TorprojectTor0.1.0.14—
TorprojectTor0.1.0.15—
TorprojectTor0.1.0.16—
TorprojectTor0.1.0.17—
TorprojectTor0.1.1.20—
TorprojectTor0.1.1.21—
TorprojectTor0.1.1.22—
TorprojectTor0.1.1.23—
TorprojectTor0.1.1.24—
TorprojectTor0.1.1.25—
TorprojectTor0.1.1.26—
TorprojectTor0.1.2.13—
TorprojectTor0.1.2.14—
TorprojectTor0.1.2.15—
TorprojectTor0.1.2.16—
TorprojectTor0.1.2.17—
TorprojectTor0.1.2.18—
TorprojectTor0.1.2.19—
TorprojectTor0.2.0.30—
TorprojectTor0.2.0.31—
TorprojectTor0.2.0.32—
TorprojectTor0.2.0.33—
TorprojectTor0.2.0.34—

Showing 50 of 81 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2012-4922?
The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.
How severe is CVE-2012-4922?
Severity scoring for CVE-2012-4922 is pending analysis. The EPSS model estimates a 2.23% probability of exploitation in the next 30 days.
How do I fix CVE-2012-4922?
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.

How Strix Helps

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Source: NVD / NIST