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CVE
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CVE-2019-19462Date: (C)2019-12-03   (M)2024-05-06


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.5CVSS Score : 4.9
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 3.6Impact Score: 6.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: COMPLETE
Integrity: NONE 
Availability: HIGH 
  
Reference:
DSA-4698
DSA-4699
USN-4414-1
USN-4425-1
USN-4439-1
USN-4440-1
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
https://security.netapp.com/advisory/ntap-20210129-0004/
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531
https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046
https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b
openSUSE-SU-2020:0801
openSUSE-SU-2020:0935

CPE    5
cpe:/o:debian:debian_linux:9.0
cpe:/o:debian:debian_linux:8.0
cpe:/o:canonical:ubuntu_linux:18.04::~~lts~~~
cpe:/o:linux:linux_kernel
...
CWE    1
CWE-476
OVAL    27
oval:org.secpod.oval:def:89000395
oval:org.secpod.oval:def:89050491
oval:org.secpod.oval:def:1503014
oval:org.secpod.oval:def:67054
...

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