CVE-2014-4171: canonical ubuntu_linux
Vulnerability summary
CVE-2014-4171 is a medium (CVSS 4.7) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38.3% of scored vulnerabilities.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 1Timeline
- 23-06-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu18 products
- linux< 3.13.0-35.62
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL12.04
Debian1 product
- linux< 3.14.15-1
Linux1 product
- linux_kernel≤ 3.15.1
4 vendors · 21 products
References
22 links- lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patchX Refsource CONFIRMThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
