CVE Feed

    Dashboard / CVE / CVE-2009-4141

    CVE-2009-4141

    Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

    Published:Dec 16, 2009
    Last Modified:Apr 23, 2026
    EPS:Jan 19, 2010
    EPSS Score:0.00109
    CVSS Score:7.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.htmlhttp://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.chttp://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.htmlhttp://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.chttps://www.exploit-db.com/exploits/33523

    Related CVEs

    CVE-2026-80925 — In the Linux kernel, the following vulnerability has been resolved: vlan: fix skb_under_panic and races when …
    CVE-2026-80924 (CVSS 7.5) — In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for …
    CVE-2026-80923 — In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on tty_regis…
    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
    CVE-2026-80919 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix recursive ww_mutex acquir…
    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
    CVE-2026-80917 — In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer deref…
    CVE-2026-80916 — In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race condit…

    References

    http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
    http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c
    http://secunia.com/advisories/38199
    http://secunia.com/advisories/39033
    http://support.avaya.com/css/P8/documents/100073666
    http://twitter.com/taviso/statuses/7744108017
    http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2
    http://www.redhat.com/support/errata/RHSA-2010-0161.html
    http://www.securityfocus.com/bid/37806
    https://bugzilla.redhat.com/show_bug.cgi?id=547906
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
    https://rhn.redhat.com/errata/RHSA-2010-0046.html
    https://rhn.redhat.com/errata/RHSA-2010-0095.html
    http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
    http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c
    http://secunia.com/advisories/38199
    http://secunia.com/advisories/39033
    http://support.avaya.com/css/P8/documents/100073666
    http://twitter.com/taviso/statuses/7744108017
    http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2
    http://www.redhat.com/support/errata/RHSA-2010-0161.html
    http://www.securityfocus.com/bid/37806
    https://bugzilla.redhat.com/show_bug.cgi?id=547906
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
    https://rhn.redhat.com/errata/RHSA-2010-0046.html
    https://rhn.redhat.com/errata/RHSA-2010-0095.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