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CVE-2011-2721

UnknownEPSS 3.38%

Last modified

CVE-2011-2721 is a vulnerability of currently unknown severity. Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.. EPSS estimates a 3.38% chance of exploitation in the next 30 days.

Description

Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.

Metrics

EPSS Probability
3.38%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
ClamavClamav<= 0.97.1—
ClamavClamav0.01—
ClamavClamav0.02—
ClamavClamav0.3—
ClamavClamav0.03—
ClamavClamav0.05—
ClamavClamav0.8Rc3
ClamavClamav0.9Rc1
ClamavClamav0.10—
ClamavClamav0.12—
ClamavClamav0.13—
ClamavClamav0.14—
ClamavClamav0.15—
ClamavClamav0.20—
ClamavClamav0.21—
ClamavClamav0.22—
ClamavClamav0.23—
ClamavClamav0.24—
ClamavClamav0.51—
ClamavClamav0.52—
ClamavClamav0.53—
ClamavClamav0.54—
ClamavClamav0.60—
ClamavClamav0.60p—
ClamavClamav0.65—
ClamavClamav0.66—
ClamavClamav0.67—
ClamavClamav0.67-1—
ClamavClamav0.68—
ClamavClamav0.68.1—
ClamavClamav0.70—
ClamavClamav0.71—
ClamavClamav0.72—
ClamavClamav0.73—
ClamavClamav0.74—
ClamavClamav0.75—
ClamavClamav0.75.1—
ClamavClamav0.80—
ClamavClamav0.80_rc—
ClamavClamav0.81—
ClamavClamav0.82—
ClamavClamav0.83—
ClamavClamav0.84—
ClamavClamav0.85—
ClamavClamav0.85.1—
ClamavClamav0.86—
ClamavClamav0.86.1—
ClamavClamav0.86.2—
ClamavClamav0.87—
ClamavClamav0.87.1—

Showing 50 of 93 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2721?
Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.
How severe is CVE-2011-2721?
Severity scoring for CVE-2011-2721 is pending analysis. The EPSS model estimates a 3.38% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2721?
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-2011-2721?

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

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Source: NVD / NIST