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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…
Medium5.5EPSS 0.64%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.64% · top 49% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (13)
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9804501fa1228048857910a6bf23e085aade37cc (opens in a new tab)x_refsource_MISCx_transferred
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1 (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2019:2675 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://security.netapp.com/advisory/ntap-20200103-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20200109 [slackware-security] Slackware 14.2 kernel (SSA:2020-008-01) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20200118 [SECURITY] [DLA 2068-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4254-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4254-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4258-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4287-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4287-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-19227)Record last updated .