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    CVE-2008-4577

    The ACL plugin in Dovecot before 1.1.4 treats negative access rights as if they are positive access rights, which allows attackers to bypass intended access restrictions.

    Published:Oct 5, 2008
    Last Modified:Apr 23, 2026
    EPS:Oct 15, 2008
    EPSS Score:0.01099
    CVSS Score:7.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Dovecot
    Product
    Dovecot
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://bugs.gentoo.org/show_bug.cgi?id=240409
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00002.html
    http://secunia.com/advisories/32164
    http://secunia.com/advisories/32471
    http://secunia.com/advisories/33149
    http://secunia.com/advisories/33624
    http://secunia.com/advisories/36904
    http://security.gentoo.org/glsa/glsa-200812-16.xml
    http://www.dovecot.org/list/dovecot-news/2008-October/000085.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:232
    http://www.redhat.com/support/errata/RHSA-2009-0205.html
    http://www.securityfocus.com/bid/31587
    http://www.ubuntu.com/usn/USN-838-1
    http://www.vupen.com/english/advisories/2008/2745
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10376
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00816.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00844.html
    http://bugs.gentoo.org/show_bug.cgi?id=240409
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00002.html
    http://secunia.com/advisories/32164
    http://secunia.com/advisories/32471
    http://secunia.com/advisories/33149
    http://secunia.com/advisories/33624
    http://secunia.com/advisories/36904
    http://security.gentoo.org/glsa/glsa-200812-16.xml
    http://www.dovecot.org/list/dovecot-news/2008-October/000085.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:232
    http://www.redhat.com/support/errata/RHSA-2009-0205.html
    http://www.securityfocus.com/bid/31587
    http://www.ubuntu.com/usn/USN-838-1
    http://www.vupen.com/english/advisories/2008/2745
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10376
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00816.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00844.html

    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