CVE-2019-19227

In the AppleTalk subsystem in the Linux kernel before 5.1, there is a potential NULL pointer dereference because register_snap_client may return NULL. This will lead to denial of service in net/appletalk/aarp.c and net/appletalk/ddp.c, as demonstrated by unregister_snap_client, aka CID-9804501fa122.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9804501fa1228048857910a6bf23e085aade37cc	Issue Tracking Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1	Release Notes Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
https://security.netapp.com/advisory/ntap-20200103-0001/
https://seclists.org/bugtraq/2020/Jan/10
http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
https://usn.ubuntu.com/4254-1/
https://usn.ubuntu.com/4254-2/
https://usn.ubuntu.com/4258-1/
https://usn.ubuntu.com/4287-1/
https://usn.ubuntu.com/4287-2/
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2019-11-22 06:15

Updated : 2019-12-12 08:15

NVD link : CVE-2019-19227

Mitre link : CVE-2019-19227

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

linux

linux_kernel

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