DEBIAN-CVE-2013-4206

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    DEBIAN-CVE-2013-4206

    Published: 19 Aug 2013Last Modified: 1 Sept 2026
    Upstream:
    CVE-2013-4206

    Summary:

    Details: Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.

    References: https://security-tracker.debian.org/tracker/CVE-2013-4206

    Affected packages

    Package

    Name: filezilla

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.7.3-1

    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