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CVE-2019-19462

Good to know:

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Date: November 29, 2019

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.

Language: C

Severity Score

Related Resources (21)

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531
https://usn.ubuntu.com/4439-1/
https://usn.ubuntu.com/4440-1/
https://security-tracker.debian.org/tracker/CVE-2019-19462
https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b
https://usn.ubuntu.com/4425-1/
https://www.debian.org/security/2020/dsa-4699
https://security.netapp.com/advisory/ntap-20210129-0004/
https://www.debian.org/security/2020/dsa-4698
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-19462
https://nvd.nist.gov/vuln/detail/CVE-2019-19462
https://lore.kernel.org/lkml/20191129013745.7168-1-dja@axtens.net/
https://access.redhat.com/security/cve/CVE-2019-19462
https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
https://usn.ubuntu.com/4414-1/
https://www.mend.io/vulnerability-database/CVE-2019-19462

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-libc-headers - 5.8

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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