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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:Jan 20, 2011
    Last Modified:Apr 11, 2025
    EPS:Jan 20, 2011
    EPSS Score:0.00573
    CVSS Score:6

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Digium
    Product
    Asterisk
    Vendor
    Digium
    Product
    Asterisknow
    Vendor
    Digium
    Product
    S800i
    Vendor
    Digium
    Product
    S800i Firmware
    Vendor
    Fedoraproject
    Product
    Fedora

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff
    http://downloads.asterisk.org/pub/security/AST-2011-001.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html
    http://osvdb.org/70518
    http://secunia.com/advisories/42935
    http://secunia.com/advisories/43119
    http://secunia.com/advisories/43373
    http://www.debian.org/security/2011/dsa-2171
    http://www.securityfocus.com/archive/1/515781/100/0/threaded
    http://www.securityfocus.com/bid/45839
    http://www.vupen.com/english/advisories/2011/0159
    http://www.vupen.com/english/advisories/2011/0281
    http://www.vupen.com/english/advisories/2011/0449
    https://exchange.xforce.ibmcloud.com/vulnerabilities/64831
    http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff
    http://downloads.asterisk.org/pub/security/AST-2011-001.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html
    http://osvdb.org/70518
    http://secunia.com/advisories/42935
    http://secunia.com/advisories/43119
    http://secunia.com/advisories/43373
    http://www.debian.org/security/2011/dsa-2171
    http://www.securityfocus.com/archive/1/515781/100/0/threaded
    http://www.securityfocus.com/bid/45839
    http://www.vupen.com/english/advisories/2011/0159
    http://www.vupen.com/english/advisories/2011/0281
    http://www.vupen.com/english/advisories/2011/0449
    https://exchange.xforce.ibmcloud.com/vulnerabilities/64831

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High