Description
A flaw was found in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c in the Linux kernel before 4.13.12. A lack of size check could cause a denial of service (BUG).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Linux kernel before 4.13.12 | Linux kernel before 4.13.12 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.13.13-1 | — |
| Debian 13 | linux | 4.13.13-1 | — |
| Debian 12 | linux | 4.13.13-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1005.7 | — |
| Ubuntu 16.04 LTS | linux-oem | 4.13.0-1010.11 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.33.4.el7uek | ELSA-2019-4850 |
Advisories 1
- ELSA-2019-4850 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 20, 2019
References
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.12
- https://access.redhat.com/security/cve/CVE-2017-15128
- https://bugzilla.redhat.com/show_bug.cgi?id=1525222
- https://github.com/torvalds/linux/commit/1e3921471354244f70fe268586ff94a97a6dd4df
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e3921471354244f70fe268586ff94a97a6dd4df