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    CVE-2011-1176

    The configuration merger in itk.c in the Steinar H. Gunderson mpm-itk Multi-Processing Module 2.2.11-01 and 2.2.11-02 for the Apache HTTP Server does not properly handle certain configuration sections that specify NiceValue but not AssignUserID, which might allow remote attackers to gain privileges by leveraging the root uid and root gid of an mpm-itk process.

    Published:Mar 29, 2011
    Last Modified:Apr 11, 2025
    EPS:Mar 29, 2011
    EPSS Score:0.00859
    CVSS Score:4.3

    Affected Products

    Vendor
    Apache
    Product
    Http Server
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Mpm-itk Project
    Product
    Mpm-itk

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-42536 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted…
    CVE-2026-44185 (CVSS 7.3) — Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP…
    CVE-2026-34355 (CVSS 7.5) — A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted …
    CVE-2026-44631 (CVSS 9.8) — Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. Th…
    CVE-2026-44119 (CVSS 5.5) — Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess au…
    CVE-2026-43951 (CVSS 6.5) — Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response lan…
    CVE-2026-42535 (CVSS 9.1) — A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly ma…
    CVE-2026-34356 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassRev…
    CVE-2026-44186 (CVSS 7.3) — Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTT…

    References

    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618857
    http://lists.err.no/pipermail/mpm-itk/2011-March/000393.html
    http://lists.err.no/pipermail/mpm-itk/2011-March/000394.html
    http://openwall.com/lists/oss-security/2011/03/20/1
    http://openwall.com/lists/oss-security/2011/03/21/13
    http://www.debian.org/security/2011/dsa-2202
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:057
    http://www.securityfocus.com/bid/46953
    http://www.vupen.com/english/advisories/2011/0748
    http://www.vupen.com/english/advisories/2011/0749
    http://www.vupen.com/english/advisories/2011/0824
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66248
    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618857
    http://lists.err.no/pipermail/mpm-itk/2011-March/000393.html
    http://lists.err.no/pipermail/mpm-itk/2011-March/000394.html
    http://openwall.com/lists/oss-security/2011/03/20/1
    http://openwall.com/lists/oss-security/2011/03/21/13
    http://www.debian.org/security/2011/dsa-2202
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:057
    http://www.securityfocus.com/bid/46953
    http://www.vupen.com/english/advisories/2011/0748
    http://www.vupen.com/english/advisories/2011/0749
    http://www.vupen.com/english/advisories/2011/0824
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66248

    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