DEBIAN-CVE-2011-0491

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    DEBIAN-CVE-2011-0491

    Published: 19 Jan 2011Last Modified: 14 Sept 2026
    Upstream:
    CVE-2011-0491

    Summary:

    Details: The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."

    References: https://security-tracker.debian.org/tracker/CVE-2011-0491

    Affected packages

    Package

    Name: tor

    Purl: pkg:deb/debian/tor?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.2.1.29-1

    Affected versions

    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
    DEBIAN-CVE-2011-0491 | CVE-DB