9.3
CVE-2017-15126
- EPSS 4.08%
- Veröffentlicht 14.01.2018 06:29:00
- Zuletzt bearbeitet 21.11.2024 03:14:07
- Quelle secalert@redhat.com
- CVE-Watchlists
- Unerledigt
A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.11 < 4.13.6
VulnDex Vulnerability Enrichment
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 4.08% | 0.894 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 8.1 | 2.2 | 5.9 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 9.3 | 8.6 | 10 |
AV:N/AC:M/Au:N/C:C/I:C/A:C
|
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
https://access.redhat.com/errata/RHSA-2018:0676
https://access.redhat.com/errata/RHSA-2018:1062
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
http://www.securityfocus.com/bid/102516
https://access.redhat.com/security/cve/CVE-2017-15126
https://bugzilla.redhat.com/show_bug.cgi?id=1523481
https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6