CVE-2018-1172

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    CVE-2018-1172

    Published: 16 May 2018Last Modified: 8 Jul 2026

    Summary:

    Details: This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software Foundation Squid 3.5.27-20180318. Authentication is not required to exploit this vulnerability. The specific flaw exists within ClientRequestContext::sslBumpAccessCheck(). A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the system. Was ZDI-CAN-6088.

    References: http://www.squid-cache.org/Advisories/SQUID-2018_3.txt, https://zerodayinitiative.com/advisories/ZDI-18-309

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- c321737de30e69b0d31944b8962eccd4e88b7267
    Fixed -None

    Affected versions

    3.5.27

    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