CVE-2014-3940: linux linux_kernel
Vulnerability summary
CVE-2014-3940 is a medium (CVSS 4.0) vulnerability in linux linux_kernel. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.8% of scored vulnerabilities.
Not severe (CVSS 4, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 05-06-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.27% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat2 products
- enterprise_linuxEOL6.0
- enterprise_mrg2.0
Debian1 product
- linux< 3.14.7-1
Linux1 product
- linux_kernel≤ 3.14.5 | 3.14 | 3.14:rc1 | 3.14:rc2 | 3.14:rc3 | 3.14:rc4 | 3.14:rc5 | 3.14:rc6 | 3.14:rc7 | 3.14:rc8 | 3.14.1 | 3.14.2 | 3.14.3 | 3.14.4
Ubuntu1 product
- linux< 3.13.0-32.57
4 vendors · 5 products
References
14 links- support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.htmlX Refsource CONFIRM
