CVE-2019-16234: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2019-16234 is a medium (CVSS 4.7) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.9% of scored vulnerabilities.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 23 · Related 21Timeline
- 11-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
drivers/net/wireless/intel/iwlwifi/pcie/trans.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 · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu36 products
- linux< 4.4.0-178.208 | < 4.15.0-99.100
- linux-aws< 4.4.0-1066.70 | < 4.4.0-1106.117 | < 4.15.0-1066.70
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1017.18~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04
Debian1 product
- linuxAll versions (No fix recorded)
Linux1 product
- linux_kernel5.2.14
Opensuse1 product
- leapEOL15.0 | 15.1
5 vendors · 40 products
References
16 links- lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
