CVE-2014-8989: linux linux_kernel
Vulnerability summary
CVE-2014-8989 is a medium (CVSS 4.6) vulnerability in linux linux_kernel. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 42.7% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.6, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 2Timeline
- 30-11-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.50% 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 (thread.gmane.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu19 products
- linux< 3.13.0-46.75
- 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)
Debian1 product
- linux< 3.16.7-ckt4-1
Linux1 product
- linux_kernel≤ 3.17.3 | 3.0:rc1 | 3.0:rc2 | 3.0:rc3 | 3.0:rc4 | 3.0:rc5 | 3.0:rc6 | 3.0:rc7 | 3.0.1 | 3.0.2 | 3.0.3 | 3.0.4 | 3.0.5 | 3.0.6 | 3.0.7 | 3.0.8 | 3.0.9 | 3.0.10 | 3.0.11 | 3.0.12 | 3.0.13 | 3.0.14 | 3.0.15 | 3.0.16 | 3.0.17 | 3.0.18 | 3.0.19 | 3.0.20 | 3.0.21 | 3.0.22 | 3.0.23 | 3.0.24 | 3.0.25 | 3.0.26 | 3.0.27 | 3.0.28 | 3.0.29 | 3.0.30 | 3.0.31 | 3.0.32 | 3.0.33 | 3.0.34 | 3.0.35 | 3.0.36 | 3.0.37 | 3.0.38 | 3.0.39 | 3.0.40 | 3.0.41 | 3.0.42 | 3.0.43 | 3.0.44 | 3.0.45 | 3.0.46 | 3.0.47 | 3.0.48 | 3.0.49 | 3.0.50 | 3.0.51 | 3.0.52 | 3.0.53 | 3.0.54 | 3.0.55 | 3.0.56 | 3.0.57 | 3.0.58 | 3.0.59 | 3.0.60 | 3.0.61 | 3.0.62 | 3.0.63 | 3.0.64 | 3.0.65 | 3.0.66 | 3.0.67 | 3.0.68 | 3.1 | 3.1:rc1 | 3.1:rc2 | 3.1:rc3 | 3.1:rc4 | 3.11 | 3.12 | 3.13 | 3.14 | 3.15 | 3.16 | 3.17 | 3.18 | 3.19 | 3.1.10 | 3.2 | 3.2:rc2 | 3.2:rc3 | 3.10 | 3.10.0 | 3.10.1 | 3.10.2 | 3.10.3 | 3.10.4 | 3.10.5 | 3.10.6 | 3.10.7 | 3.10.8 | 3.10.9 | 3.10.10 | 3.10.11 | 3.10.12 | 3.10.13 | 3.10.14 | 3.10.15 | 3.10.16 | 3.10.17 | 3.10.18 | 3.10.19 | 3.10.20 | 3.10.21 | 3.10.22 | 3.10.23 | 3.10.24 | 3.10.25 | 3.10.26 | 3.10.27 | 3.10.28 | 3.10.29 | 3.11.1 | 3.11.2 | 3.11.3 | 3.11.4 | 3.11.5 | 3.11.6 | 3.11.7 | 3.11.8 | 3.11.9 | 3.11.10 | 3.12.1 | 3.12.2 | 3.12.3 | 3.12.4 | 3.12.5 | 3.12.6 | 3.12.7 | 3.12.8 | 3.12.9 | 3.12.10 | 3.12.11 | 3.12.12 | 3.12.13 | 3.12.14 | 3.12.15 | 3.12.16 | 3.12.17 | 3.13.1 | 3.13.2 | 3.13.3 | 3.13.4 | 3.13.5 | 3.13.6 | 3.13.7 | 3.13.8 | 3.13.9 | 3.13.10 | 3.13.11 | 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 | 3.14.5 | 3.15.1 | 3.15.2 | 3.15.3 | 3.15.4 | 3.15.5 | 3.15.6 | 3.15.7 | 3.15.8 | 3.16.0 | 3.16.1 | 3.17.1 | 3.17.2
3 vendors · 21 products
References
17 links- lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.htmlVendor AdvisoryX Refsource FEDORA
