Vulnerability Monitor

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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 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.

Published

2011-01-20T19:00:08.600

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

6.8

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application digium asterisk < c.3.6.2 Yes
Application digium asterisk ≤ 1.2.40 Yes
Application digium asterisk < 1.4.38.1 Yes
Application digium asterisk < 1.4.39.1 Yes
Application digium asterisk < 1.6.1.21 Yes
Application digium asterisk < 1.6.2.15.1 Yes
Application digium asterisk < 1.6.2.16.1 Yes
Application digium asterisk < 1.8.1.2 Yes
Application digium asterisk < 1.8.2.2 Yes
Application digium asterisknow 1.5 Yes
Operating System fedoraproject fedora 13 Yes
Operating System fedoraproject fedora 14 Yes
Operating System debian debian_linux 6.0 Yes
Operating System digium s800i_firmware 1.2.0 Yes
Hardware digium s800i - No
References