CVE-2018-12233
unknown
CVSS v3
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CVSS v2
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VIR risk
—
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.
Predictions
Exploit likelihood
20%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-12233
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12233.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.17.3-1 |
| debian | bullseye | fixed | 4.17.3-1 |
| debian | forky | fixed | 4.17.3-1 |
| debian | sid | fixed | 4.17.3-1 |
| debian | trixie | fixed | 4.17.3-1 |
References
Verify integrity in audit chain (admin only). AS-IS.