MEDIUM · 6.0

CVE-2011-0495

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition be...

Vulnerability Description

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.

CVSS Score

6.0

MEDIUM

AV:N/AC:M/Au:S/C:P/I:P/A:P
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL

Affected Products

VendorProductVersions
DigiumAsterisk< c.3.6.2
DigiumAsterisknow1.5
FedoraprojectFedora13
DebianDebian Linux6.0
DigiumS800I Firmware1.2.0
DigiumS800I-

Related Weaknesses (CWE)

References

FAQ

What is CVE-2011-0495?

CVE-2011-0495 is a vulnerability with a CVSS score of 6.0 (MEDIUM). Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition be...

How severe is CVE-2011-0495?

CVE-2011-0495 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2011-0495?

Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Asterisknow, Fedoraproject Fedora, Debian Debian Linux, Digium S800I Firmware.