UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
73 explicit affected versions
33 explicit affected versions
3 explicit affected versions
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191 explicit affected versions
38 explicit affected versions
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1 explicit affected versions
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23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
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10 explicit affected versions
19 explicit affected versions
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36 explicit affected versions
1 explicit affected versions
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23 explicit affected versions
11 explicit affected versions
75 explicit affected versions
2 explicit affected versions
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43 explicit affected versions
104 explicit affected versions
51 explicit affected versions
52 explicit affected versions
1 explicit affected versions
1 explicit affected versions
62 explicit affected versions
21 explicit affected versions
39 explicit affected versions
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34 explicit affected versions
82 explicit affected versions
65 explicit affected versions
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29 explicit affected versions
20 explicit affected versions
12 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1
- https://git.kernel.org/linus/9804501fa1228048857910a6bf23e085aade37cc
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9804501fa1228048857910a6bf23e085aade37cc
- https://ubuntu.com/security/CVE-2019-19227
- https://ubuntu.com/security/notices/USN-4254-1
- https://ubuntu.com/security/notices/USN-4254-2
- https://ubuntu.com/security/notices/USN-4258-1
- https://ubuntu.com/security/notices/USN-4287-1
- https://ubuntu.com/security/notices/USN-4287-2
- https://www.cve.org/CVERecord?id=CVE-2019-19227