MEDIUM
CVE-2019-19965
CWE-476Published: December 25, 2019· Updated: Jun 17, 2026
4.7
CVSS v3.1
Official Description
In the Linux kernel through 5.4.6, there is a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5.
Technical Analysis
CVE-2019-19965 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.7.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Linux1 product(s)
linux kernel
netapp17 product(s)
active iq unified managercloud backupdata availability servicese-series santricity os controllerhci management nodesolidfiresteelstore cloud integrated storagea700s firmwarea700sh610s firmwareh610s8300 firmware+5
openSUSE1 product(s)
leap
Source: NVD CPE · 24 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://usn.ubuntu.com/4284-1/
ADVISORYhttps://usn.ubuntu.com/4285-1/
ADVISORYhttps://usn.ubuntu.com/4286-1/
ADVISORYhttps://usn.ubuntu.com/4286-2/
ADVISORYhttps://usn.ubuntu.com/4287-1/
ADVISORYhttps://usn.ubuntu.com/4287-2/
ADVISORYhttps://usn.ubuntu.com/4284-1/
ADVISORYhttps://usn.ubuntu.com/4285-1/
ADVISORYhttps://usn.ubuntu.com/4286-1/
ADVISORYhttps://usn.ubuntu.com/4286-2/
ADVISORYhttps://usn.ubuntu.com/4287-1/
ADVISORYhttps://usn.ubuntu.com/4287-2/
All References (22)
→
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List · Third Party Advisory
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f70267f379b5e5e11bdc5d72a56bf17e5feed01fExploit · Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20200204-0002/Third Party Advisory
→
https://usn.ubuntu.com/4284-1/Third Party Advisory
→
https://usn.ubuntu.com/4285-1/Third Party Advisory
→
https://usn.ubuntu.com/4286-1/Third Party Advisory
→
https://usn.ubuntu.com/4286-2/Third Party Advisory
→
https://usn.ubuntu.com/4287-1/Third Party Advisory
→
https://usn.ubuntu.com/4287-2/Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List · Third Party Advisory
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f70267f379b5e5e11bdc5d72a56bf17e5feed01fExploit · Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2019-19965
CVSS Score4.7 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected5 vendor(s)
PublishedDec 25, 2019
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-19965 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.