Strix
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CVE-2011-2529

UnknownEPSS 4.28%

Last modified

CVE-2011-2529 is a vulnerability of currently unknown severity. chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.. EPSS estimates a 4.28% chance of exploitation in the next 30 days.

Description

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.

Metrics

EPSS Probability
4.28%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
DigiumAsterisk1.6.0—
DigiumAsterisk1.6.0.1—
DigiumAsterisk1.6.0.2—
DigiumAsterisk1.6.0.3—
DigiumAsterisk1.6.0.4Rc1
DigiumAsterisk1.6.0.5—
DigiumAsterisk1.6.0.6—
DigiumAsterisk1.6.0.7—
DigiumAsterisk1.6.0.8—
DigiumAsterisk1.6.0.9—
DigiumAsterisk1.6.0.10—
DigiumAsterisk1.6.0.11—
DigiumAsterisk1.6.0.12—
DigiumAsterisk1.6.0.13—
DigiumAsterisk1.6.0.14—
DigiumAsterisk1.6.0.15—
DigiumAsterisk1.6.0.16—
DigiumAsterisk1.6.0.17—
DigiumAsterisk1.6.0.18—
DigiumAsterisk1.6.0.19—
DigiumAsterisk1.6.0.20Rc1
DigiumAsterisk1.6.0.21—
DigiumAsterisk1.6.0.22—
DigiumAsterisk1.6.0.23Rc2
DigiumAsterisk1.6.0.24—
DigiumAsterisk1.6.0.25—
DigiumAsterisk1.6.0.26—
DigiumAsterisk1.6.1—
DigiumAsterisk1.6.1.0—
DigiumAsterisk1.6.1.1—
DigiumAsterisk1.6.1.2—
DigiumAsterisk1.6.1.3Rc1
DigiumAsterisk1.6.1.4—
DigiumAsterisk1.6.1.5—
DigiumAsterisk1.6.1.6—
DigiumAsterisk1.6.1.7Rc1
DigiumAsterisk1.6.1.8—
DigiumAsterisk1.6.1.9—
DigiumAsterisk1.6.1.10—
DigiumAsterisk1.6.1.11—
DigiumAsterisk1.6.1.12—
DigiumAsterisk1.6.1.13—
DigiumAsterisk1.6.1.14—
DigiumAsterisk1.6.1.15Rc2
DigiumAsterisk1.6.1.16—
DigiumAsterisk1.6.1.17—
DigiumAsterisk1.6.1.18—
DigiumAsterisk1.6.1.19—
DigiumAsterisk1.6.1.20—
DigiumAsterisk1.6.1.21—

Showing 50 of 85 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2529?
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.
How severe is CVE-2011-2529?
Severity scoring for CVE-2011-2529 is pending analysis. The EPSS model estimates a 4.28% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2529?
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-2011-2529?

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

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Source: NVD / NIST