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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…
Medium4.7EPSS 0.33%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.7 | CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
n/a
- affected n/a
References (8)
- https://bugzilla.redhat.com/show_bug.cgi?id=1218879 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20150526 CVE request: vulnerability in the kernel tty subsystem. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:1395 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 74820 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2015-4170)Record last updated .