kernel: potential NULL pointer dereference leads to DoS
Published Nov 22, 2019
5.5
MEDIUMCVSS 3.1
EPSS 0.64%
Description
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.
Affected products
No data.
- < 5.1
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (18)
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html vendor-advisoryx_refsource_SUSE
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2019-19227 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1851480 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1 x_refsource_MISCRelease NotesVendor Advisory
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-8853 Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9804501fa1228048857910a6bf23e085aade37cc x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html mailing-listx_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2019-19227
- https://seclists.org/bugtraq/2020/Jan/10 mailing-listx_refsource_BUGTRAQ
- https://security.netapp.com/advisory/ntap-20200103-0001/ x_refsource_CONFIRM
- https://usn.ubuntu.com/4254-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4254-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4258-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4287-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4287-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2019-19227
Change history (0)
No recorded changes yet.