CVE-2018-12233
In the ea_get function in fs/jfs/xattr.c in the Linux kernel through 4.17.1, a memory corruption bug in JFS can be triggered by calling…
- 7.8HighCVSS base score
- 2.4%Exploitation in 30 daysEPSS · top 16% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the ea_get function in fs/jfs/xattr.c in the Linux kernel through 4.17.1, a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr.
Timeline
ID reserved
By mitre
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
References12
- USN-3752-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 104452 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3752-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3753-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3754-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://marc.info/?l=linux-kernel&m=152814391530549&w=2 (opens in a new tab)x_refsource_MISCx_transferred
- https://lkml.org/lkml/2018/6/2/2 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3752-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3753-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-4211 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-12233)Record last updated .