CVE-2018-13094: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2018-13094 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.18% chance of exploitation in the next 30 days, higher than 82.3% 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 18 · Related 13Timeline
- 03-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in fs/xfs/libxfs/xfs_attr_leaf.c in the Linux kernel through 4.17.3. An OOPS may occur for a corrupted xfs image after xfs_da_shrink_inode() is called with a NULL bp.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.18%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.18% 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 (bugzilla.kernel.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu22 products
- linux< 3.13.0-157.207 | < 4.4.0-134.160 | < 4.15.0-33.36
- linux-aws< 4.4.0-1028.31 | < 4.4.0-1066.76 | < 4.15.0-1020.20
- linux-azure< 4.15.0-1022.22~16.04.1 | < 4.15.0-1022.23
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04
Debian1 product
- linux< 4.17.14-1
Linux1 product
- linux_kernel≤ 4.17.3
4 vendors · 25 products
References
22 links- github.com/torvalds/linux/commit/bb3d48dcf86a97dc25fe9fc2c11938e19cb4399aX Refsource MISCPatchThird Party AdvisoryREPORT
- bugzilla.kernel.org/show_bug.cgi?id=199969X Refsource MISCExploitIssue TrackingThird Party AdvisoryREPORT
