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    CVE-2024-25111

    Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.

    Published:Mar 6, 2024
    Last Modified:Nov 3, 2025
    EPS:Mar 6, 2024
    EPSS Score:0.01385
    CVSS Score:8.6

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Netapp
    Product
    Bluexp
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Squid-cache
    Product
    Squid

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-674 Uncontrolled Recursion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads

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    References

    http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch
    https://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxc
    https://lists.fedoraproject.org/archives/list/[email protected]/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
    https://security.netapp.com/advisory/ntap-20240605-0001/
    http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch
    https://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxc
    https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
    https://security.netapp.com/advisory/ntap-20240605-0001/

    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