CVE - CVE-2015-7550

CVE-ID
CVE-2015-7550	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:79903 URL:http://www.securityfocus.com/bid/79903 MISC:DSA-3434 URL:http://www.debian.org/security/2016/dsa-3434 MISC:SUSE-SU-2016:0911 URL:http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html MISC:SUSE-SU-2016:1102 URL:http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html MISC:SUSE-SU-2016:2074 URL:http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html MISC:USN-2888-1 URL:http://www.ubuntu.com/usn/USN-2888-1 MISC:USN-2890-1 URL:http://www.ubuntu.com/usn/USN-2890-1 MISC:USN-2890-2 URL:http://www.ubuntu.com/usn/USN-2890-2 MISC:USN-2890-3 URL:http://www.ubuntu.com/usn/USN-2890-3 MISC:USN-2911-1 URL:http://www.ubuntu.com/usn/USN-2911-1 MISC:USN-2911-2 URL:http://www.ubuntu.com/usn/USN-2911-2 MISC:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d URL:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d MISC:http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4 URL:http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=1291197 URL:https://bugzilla.redhat.com/show_bug.cgi?id=1291197 MISC:https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d URL:https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d MISC:https://security-tracker.debian.org/tracker/CVE-2015-7550 URL:https://security-tracker.debian.org/tracker/CVE-2015-7550
Assigning CNA
Red Hat, Inc.
Date Record Created
20150929	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20150929)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)

Use of the CVE® List and the associated references from this website are subject to the terms of use. CVE is sponsored by the U.S. Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA). Copyright © 1999–2024, The MITRE Corporation. CVE and the CVE logo are registered trademarks of The MITRE Corporation.