CVE-2023-49286

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    CVE-2023-49286

    Published: 4 Dec 2023Last Modified: 28 Oct 2026

    Summary: Denial of Service in Helper Process management

    Details: Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

    References: http://www.squid-cache.org/Versions/v6/SQUID-2023_8.patch, https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/, https://lists.fedoraproject.org/archives/list/[email protected]/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49286.json, https://github.com/squid-cache/squid/security/advisories/GHSA-xggx-9329-3c27, https://nvd.nist.gov/vuln/detail/CVE-2023-49286, https://security.netapp.com/advisory/ntap-20240119-0004/, https://github.com/squid-cache/squid/commit/6014c6648a2a54a4ecb7f952ea1163e0798f9264

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -6014c6648a2a54a4ecb7f952ea1163e0798f9264

    Affected versions

    SQUID_6_4

    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
    CVE-2023-49286 | CVE-DB