CVE-2019-19927 — In the Linux kernel 5
In the Linux kernel 5.0.0-rc7 (as distributed in ubuntu/linux.git on kernel.ubuntu.com), mounting a crafted f2fs filesystem image and performing some operations can lead to slab-out-of-bounds read access in ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c. This is related to
Published
2019-12-31T02:00:12.000Z
Last modified
2024-08-05T02:32:09.762Z
01What is this vulnerability?
In the Linux kernel 5.0.0-rc7 (as distributed in ubuntu/linux.git on kernel.ubuntu.com), mounting a crafted f2fs filesystem image and performing some operations can lead to slab-out-of-bounds read access in ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c. This is related to the vmwgfx or ttm module.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-12-31T02:00:12.000Z
- Last modified: 2024-08-05T02:32:09.762Z
09References
- github.com — https://github.com/torvalds/linux/commit/a66477b0efe511d98dde3e4aaeb189790e6f0a3…
- github.com — https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19927
- github.com — https://github.com/torvalds/linux/commit/ac1e516d5a4c56bf0cb4a3dfc0672f689131cfd…
- github.com — https://github.com/torvalds/linux/commit/453393369dc9806d2455151e329c59968476242…
- security.netapp.com — https://security.netapp.com/advisory/ntap-20200204-0002/
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
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