CVE-2015-4170 Race 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_dow...
MediumCVSS 4.7
EPSS 0.33%
- Published
- Updated
- Exploit status
- No public exploit known
Description
Race 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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/linux(Debian:12) | < 3.13.4-1 | 3.13.4-1 |
| debian/linux(Debian:13) | < 3.13.4-1 | 3.13.4-1 |
| debian/linux(Debian:14) | < 3.13.4-1 | 3.13.4-1 |
| Linux kernel | <= 3.13.3 | No fix listed |
| redhat enterprise linux compute node eus | = 7.1 | No fix listed |
| redhat enterprise linux for ibm z systems eus | = 7.1_s390x | No fix listed |
| redhat enterprise linux for power big endian eus | = 7.1_ppc64 | No fix listed |
| redhat enterprise linux for power little endian eus | = 7.1_ppc64le | No fix listed |
| redhat enterprise linux server eus | = 7.1 | No fix listed |
References
- Debian Security Tracker CVE-2015-4170 vendor-advisory
- git.kernel.org vendor-advisory
- [oss-security] 20150526 CVE request: vulnerability in the kernel tty subsystem. mailing-list
- www.oracle.com
- 74820 vdb-entry
- RHSA-2016:1395 third-party-advisory vendor-advisory
- bugzilla.redhat.com issue-tracking vdb-entry
- github.com
- www.kernel.org patch