UBUNTU-CVE-2022-43552

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    UBUNTU-CVE-2022-43552

    Published: 21 Dec 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2022-43552

    Summary:

    Details: A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.

    References: https://ubuntu.com/security/CVE-2022-43552, https://curl.se/docs/CVE-2022-43552.html, https://ubuntu.com/security/notices/USN-5788-1, https://ubuntu.com/security/notices/USN-5894-1, https://www.cve.org/CVERecord?id=CVE-2022-43552

    Affected packages

    Package

    Name: curl

    Purl: pkg:deb/ubuntu/[email protected]+esm14?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.35.0-1ubuntu2.20+esm14

    Affected versions

    7.32.0-1ubuntu1

    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
    UBUNTU-CVE-2022-43552 | CVE-DB