Vulnerability in Linux Kernel
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_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.
Vulnerability class: Race Condition
EPSS: 0.003 (25.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Redhat Enterprise_linux_compute_node_eus — versions 7.1
- Redhat Enterprise_linux_for_ibm_z_systems_eus — versions 7.1_s390x
- Redhat Enterprise_linux_for_power_big_endian_eus — versions 7.1_ppc64
- Redhat Enterprise_linux_for_power_little_endian_eus — versions 7.1_ppc64le
- Redhat Enterprise_linux_server_eus — versions 7.1
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, VDB Entry, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_CONFIRM, Patch)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2015-4170?
- CVE-2015-4170 is a medium-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2016-05-02.
- How severe is CVE-2015-4170?
- Medium severity. CVSS v3 base score is 4.7 out of 10.