CVE-2011-0495

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.

Category

6.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.47%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory asterisk.org Vendor Advisory asterisk.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.vupen.com/english/advisories/2011/0159 vdb entry permissions required
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html third party advisory vendor advisory
http://downloads.asterisk.org/pub/security/AST-2011-001.html vendor advisory
http://secunia.com/advisories/43373 third party advisory
http://www.vupen.com/english/advisories/2011/0449 vdb entry permissions required
http://osvdb.org/70518 vdb entry broken link
http://www.securityfocus.com/bid/45839 vdb entry third party advisory
http://www.vupen.com/english/advisories/2011/0281 vdb entry permissions required
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html third party advisory vendor advisory
http://www.debian.org/security/2011/dsa-2171 third party advisory vendor advisory
http://secunia.com/advisories/43119 third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/64831 vdb entry third party advisory
http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff patch vendor advisory
http://www.securityfocus.com/archive/1/515781/100/0/threaded mailing list vdb entry third party advisory
http://secunia.com/advisories/42935 third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-0495?
CVE-2011-0495 has been scored as a medium severity vulnerability.
How to fix CVE-2011-0495?
To fix CVE-2011-0495, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-0495 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-0495 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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