CVE-2015-4170

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Summary

CVECVE-2015-4170
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-05-02 10:59:00 UTC
Updated2017-11-12 02:29:00 UTC
DescriptionRace condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.

Risk And Classification

Problem Types: CWE-362

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux Compute Node Eus 7.1 All All All
Operating System Redhat Enterprise Linux Compute Node Eus 7.1 All All All
Operating System Redhat Enterprise Linux For Ibm Z Systems Eus 7.1_s390x All All All
Operating System Redhat Enterprise Linux For Ibm Z Systems Eus 7.1_s390x All All All
Operating System Redhat Enterprise Linux For Power Big Endian Eus 7.1_ppc64 All All All
Operating System Redhat Enterprise Linux For Power Big Endian Eus 7.1_ppc64 All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 7.1_ppc64le All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 7.1_ppc64le All All All
Operating System Redhat Enterprise Linux Server Eus 7.1 All All All
Operating System Redhat Enterprise Linux Server Eus 7.1 All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Bug 1218879 – CVE-2015-4170 kernel: pty layer race condition on tty ldisc shutdown. CONFIRM bugzilla.redhat.com Issue Tracking, VDB Entry
tty: Fix hang at ldsem_down_read() · torvalds/linux@cf87277 · GitHub CONFIRM github.com
oss-security - CVE request: vulnerability in the kernel tty subsystem. MLIST www.openwall.com
Oracle Linux Bulletin - October 2015 CONFIRM www.oracle.com
Linux Kernel 'tty/tty_ldsem.c' Local Race Condition Vulnerability BID www.securityfocus.com
kernel/git/torvalds/linux.git - Linux kernel source tree CONFIRM git.kernel.org Vendor Advisory
www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz CONFIRM www.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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