kritisch
CVE-2018-12714
kernel: slab out-of-bounds write in trace/trace_events_filter.c
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut Red Hat (mittel), Ubuntu (mittel).
Beschreibung
An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| ubuntu 18.04 | linux-hwe-edge | 4.18.0-8.9~18.04.1 |
| ubuntu 18.04-ESM | linux-azure-edge, linux-hwe-edge | 4.18.0-8.9~18.04.1 |
Alle 3 Einträge aus 2 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| ubuntu 18.04 | linux-hwe-edge | 4.18.0-8.9~18.04.1 |
| ubuntu 18.04-ESM | linux-azure-edge | kein Fix angegeben |
| ubuntu 18.04-ESM | linux-hwe-edge | 4.18.0-8.9~18.04.1 |
Referenzen
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81f9c4e4177d31ced6f52a89bb70e93bfb77ca03
- http://www.securityfocus.com/bid/104544
- https://access.redhat.com/security/cve/CVE-2018-12714
- https://bugzilla.kernel.org/show_bug.cgi?id=200019
- https://github.com/lcytxw/bug_repro/tree/master/bug_200019
- https://github.com/torvalds/linux/commit/81f9c4e4177d31ced6f52a89bb70e93bfb77ca03
- https://nvd.nist.gov/vuln/detail/CVE-2018-12714
- https://www.cve.org/CVERecord?id=CVE-2018-12714