CVE-2019-16233: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2019-16233 is a medium (CVSS 4.7) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 32.1% of scored vulnerabilities.
Not severe (CVSS 4.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 24 · Related 20Timeline
- 11-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
drivers/scsi/qla2xxx/qla_os.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.38% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu32 products
- linuxAll versions (No fix recorded) | < 4.4.0-178.208 | < 4.15.0-74.84
- linux-aws< 4.4.0-1066.70 | < 4.4.0-1106.117 | < 4.15.0-1057.59
- linux-aws-5.0< 5.0.0-1023.26~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1057.59~16.04.1
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 19.04
Debian1 product
- linuxAll versions (No fix recorded)
Linux1 product
- linux_kernel5.2.14
Opensuse1 product
- leapEOL15.0 | 15.1
Redhat1 product
- enterprise_linuxEOL7.0 | 8.0
6 vendors · 37 products
References
15 links- lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00035.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
