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    CVE-2009-1527

    Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30-rc4 allows local users to gain privileges via a PTRACE_ATTACH ptrace call during an exec system call that is launching a setuid application, related to locking an incorrect cred_exec_mutex object.

    Published:May 5, 2009
    Last Modified:Apr 23, 2026
    EPS:May 5, 2009
    EPSS Score:0.00061
    CVSS Score:6.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    https://www.exploit-db.com/exploits/8673

    Related CVEs

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    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…
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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
    http://secunia.com/advisories/34977
    http://secunia.com/advisories/35120
    http://wiki.rpath.com/Advisories:rPSA-2009-0084
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4
    http://www.openwall.com/lists/oss-security/2009/05/04/2
    http://www.osvdb.org/54188
    http://www.securityfocus.com/archive/1/503610/100/0/threaded
    http://www.securityfocus.com/bid/34799
    http://www.vupen.com/english/advisories/2009/1236
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50293
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb
    http://secunia.com/advisories/34977
    http://secunia.com/advisories/35120
    http://wiki.rpath.com/Advisories:rPSA-2009-0084
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4
    http://www.openwall.com/lists/oss-security/2009/05/04/2
    http://www.osvdb.org/54188
    http://www.securityfocus.com/archive/1/503610/100/0/threaded
    http://www.securityfocus.com/bid/34799
    http://www.vupen.com/english/advisories/2009/1236
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50293

    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