CVE Feed

    Dashboard / CVE / CVE-2009-3043

    CVE-2009-3043

    The tty_ldisc_hangup function in drivers/char/tty_ldisc.c in the Linux kernel 2.6.31-rc before 2.6.31-rc8 allows local users to cause a denial of service (system crash, sometimes preceded by a NULL pointer dereference) or possibly gain privileges via certain pseudo-terminal I/O activity, as demonstrated by KernelTtyTest.c.

    Published:Sep 2, 2009
    Last Modified:Apr 23, 2026
    EPS:Sep 2, 2009
    EPSS Score:0.00153
    CVSS Score:4.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    http://lkml.org/lkml/2009/8/20/21http://lkml.org/lkml/2009/8/20/27http://www.securityfocus.com/bid/36191http://lkml.org/lkml/2009/8/20/21http://lkml.org/lkml/2009/8/20/27http://www.securityfocus.com/bid/36191https://www.exploit-db.com/exploits/33193

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5c58ceff103d8a654f24769bb1baaf84a841b0cc
    http://lkml.org/lkml/2009/8/20/21
    http://lkml.org/lkml/2009/8/20/27
    http://lkml.org/lkml/2009/8/20/68
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc8
    http://www.openwall.com/lists/oss-security/2009/08/31/1
    http://www.openwall.com/lists/oss-security/2009/09/03/6
    http://www.openwall.com/lists/oss-security/2009/09/03/7
    http://www.securityfocus.com/bid/36191
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5c58ceff103d8a654f24769bb1baaf84a841b0cc
    http://lkml.org/lkml/2009/8/20/21
    http://lkml.org/lkml/2009/8/20/27
    http://lkml.org/lkml/2009/8/20/68
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc8
    http://www.openwall.com/lists/oss-security/2009/08/31/1
    http://www.openwall.com/lists/oss-security/2009/09/03/6
    http://www.openwall.com/lists/oss-security/2009/09/03/7
    http://www.securityfocus.com/bid/36191

    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