Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2019-19462
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*
- cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-19462
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-19462
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2019-19462
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-19462
-
https://security.netapp.com/advisory/ntap-20210129-0004/
CVE-2019-19462 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
[security-announce] openSUSE-SU-2020:0801-1: important: Security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
[SECURITY] [DLA 2242-1] linux-4.9 security updateMailing List;Third Party Advisory
-
https://lore.kernel.org/lkml/20191129013745.7168-1-dja@axtens.net/
[PATCH] relay: handle alloc_percpu returning NULL in relay_open - Daniel AxtensMailing List;Patch;Vendor Advisory
-
https://www.debian.org/security/2020/dsa-4699
Debian -- Security Information -- DSA-4699-1 linuxThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
[security-announce] openSUSE-SU-2020:0935-1: important: Security updateMailing List;Third Party Advisory
-
https://usn.ubuntu.com/4414-1/
USN-4414-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
BUG: Unable to handle kernel data access at ADDRPatch;Third Party Advisory
-
https://usn.ubuntu.com/4439-1/
USN-4439-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://usn.ubuntu.com/4425-1/
USN-4425-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b
general protection fault in relay_openThird Party Advisory
-
https://www.debian.org/security/2020/dsa-4698
Debian -- Security Information -- DSA-4698-1 linuxThird Party Advisory
-
https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531
BUG: unable to handle kernel paging request in relay_destroy_bufPatch;Third Party Advisory
-
https://usn.ubuntu.com/4440-1/
USN-4440-1: linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046
general protection fault in relay_close_bufThird Party Advisory
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