NULL pointer dereference in Linux Kernel
CVE-2019-19462
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- NetApp Active Iq Unified Manager
- NetApp Hci Compute Node
- NetApp Hci Management Node
- NetApp Hci Storage Node
- NetApp Solidfire
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0, 10.0
- openSUSE Leap — versions 15.1, 15.2
Weakness classification (CWE)
References
- syzkaller-ppc64.appspot.com/bug (Patch, Third Party Advisory)
- syzkaller-ppc64.appspot.com/bug (Patch, Third Party Advisory)
- syzkaller.appspot.com/bug (Third Party Advisory)
- syzkaller.appspot.com/bug (Third Party Advisory)
- lore.kernel.org/lkml/20191129013745.7168-1-dja@axtens.net/
- lists.debian.org/debian-lts-announce/2020/06/msg00012.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4698 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2020/dsa-4699 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19462?
- CVE-2019-19462 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2019-11-30.
- How severe is CVE-2019-19462?
- Medium severity. CVSS v3 base score is 5.5 out of 10.