CVE-2019-11487
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-11487
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-11487.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.19.37-1 |
| debian | bullseye | fixed | 4.19.37-1 |
| debian | forky | fixed | 4.19.37-1 |
| debian | sid | fixed | 4.19.37-1 |
| debian | trixie | fixed | 4.19.37-1 |
References
Verify integrity in audit chain (admin only). AS-IS.