CVE-2015-7550 (GCVE-0-2015-7550)

Vulnerability from cvelistv5 – Published: 2016-02-08 02:00 – Updated: 2024-08-06 07:51
VLAI?
Summary
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
http://www.securityfocus.com/bid/79903 vdb-entryx_refsource_BID
http://www.kernel.org/pub/linux/kernel/v4.x/Chang… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2911-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2890-3 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://bugzilla.redhat.com/show_bug.cgi?id=1291197 x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/b4a1b4f5… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2911-2 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.ubuntu.com/usn/USN-2890-2 vendor-advisoryx_refsource_UBUNTU
https://security-tracker.debian.org/tracker/CVE-2… x_refsource_CONFIRM
http://git.kernel.org/cgit/linux/kernel/git/torva… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2890-1 vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2016/dsa-3434 vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2888-1 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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