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CVE-2011-1147

UnknownEPSS 3.52%

Last modified

CVE-2011-1147 is a vulnerability of currently unknown severity. Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.. EPSS estimates a 3.52% chance of exploitation in the next 30 days.

Description

Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.

Metrics

EPSS Probability
3.52%

87.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
DigiumAsterisk1.4.0—
DigiumAsterisk1.4.1—
DigiumAsterisk1.4.2—
DigiumAsterisk1.4.3—
DigiumAsterisk1.4.10—
DigiumAsterisk1.4.10.1—
DigiumAsterisk1.4.11—
DigiumAsterisk1.4.12—
DigiumAsterisk1.4.12.1—
DigiumAsterisk1.4.13—
DigiumAsterisk1.4.14—
DigiumAsterisk1.4.15—
DigiumAsterisk1.4.16—
DigiumAsterisk1.4.16.1—
DigiumAsterisk1.4.16.2—
DigiumAsterisk1.4.17—
DigiumAsterisk1.4.18—
DigiumAsterisk1.4.19—
DigiumAsterisk1.4.19.1—
DigiumAsterisk1.4.19.2—
DigiumAsterisk1.4.20—
DigiumAsterisk1.4.20.1—
DigiumAsterisk1.4.21—
DigiumAsterisk1.4.21.1—
DigiumAsterisk1.4.21.2—
DigiumAsterisk1.4.22—
DigiumAsterisk1.4.22.1—
DigiumAsterisk1.4.22.2—
DigiumAsterisk1.4.23—
DigiumAsterisk1.4.23.1—
DigiumAsterisk1.4.23.2—
DigiumAsterisk1.4.24—
DigiumAsterisk1.4.24.1—
DigiumAsterisk1.4.25—
DigiumAsterisk1.4.25.1—
DigiumAsterisk1.4.26—
DigiumAsterisk1.4.26.1—
DigiumAsterisk1.4.26.2—
DigiumAsterisk1.4.26.3—
DigiumAsterisk1.4.27—
DigiumAsterisk1.4.27.1—
DigiumAsterisk1.4.28—
DigiumAsterisk1.4.29—
DigiumAsterisk1.4.29.1—
DigiumAsterisk1.4.30—
DigiumAsterisk1.4.31—
DigiumAsterisk1.4.32—
DigiumAsterisk1.4.33—
DigiumAsterisk1.4.33.1—
DigiumAsterisk1.4.34—

Showing 50 of 112 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-1147?
Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.
How severe is CVE-2011-1147?
Severity scoring for CVE-2011-1147 is pending analysis. The EPSS model estimates a 3.52% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1147?
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-2011-1147?

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

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Source: NVD / NIST