CVE-2014-7970: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2014-7970 is a medium (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 52.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 2Timeline
- 13-10-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.67% 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
1 foundExploit Reference (spinics.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu19 products
- linux< 3.13.0-40.69
- 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 | 14.04
Debian1 product
- linux< 3.16.7-1
Linux1 product
- linux_kernel≤ 3.17
Novell1 product
- suse_linux_enterprise_server11.0:sp3
5 vendors · 23 products
References
25 links- lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1151095X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2014/10/08/21Mailing ListX Refsource MLISTPatchThird Party Advisory
Show all 25 references
- www.spinics.net/lists/linux-fsdevel/msg79153.htmlMailing ListX Refsource MLISTExploitPatchThird Party Advisory
