CVE-2019-12067: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2019-12067 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 23.6% of scored vulnerabilities.
Not severe (CVSS 6.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 02-06-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The ahci_commit_buf function in ide/ahci.c in QEMU allows attackers to cause a denial of service (NULL dereference) when the command header 'ad->cur_cmd' is null.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.31% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Chainguard14 products
- qemuAll versions (No fix recorded)
- qemu-block-iscsiAll versions (No fix recorded)
- qemu-block-rbdAll versions (No fix recorded)
- qemu-edk2-aarch64All versions (No fix recorded)
- qemu-edk2-x86_64All versions (No fix recorded)
Wolfi14 products
- qemuAll versions (No fix recorded)
- qemu-block-iscsiAll versions (No fix recorded)
- qemu-block-rbdAll versions (No fix recorded)
- qemu-edk2-aarch64All versions (No fix recorded)
- qemu-edk2-x86_64All versions (No fix recorded)
Debian2 products
- qemuAll versions (No fix recorded)
- debian_linuxEOL9.0 | 10.0 | 11.0
Redhat2 products
- enterprise_linux8.0
- openstack_platform10.0 | 14.0
Ubuntu2 products
- qemuAll versions (No fix recorded)
- qemu-hweAll versions (No fix recorded)
Fedoraproject1 product
- fedoraEOL30
Qemu1 product
- qemuna
7 vendors · 36 products
References
7 links- lists.gnu.org/archive/html/qemu-devel/2019-08/msg01358.htmlX Refsource MISCMailing ListPatchThird Party AdvisoryFIX
- lists.gnu.org/archive/html/qemu-devel/2019-08/msg01487.htmlX Refsource MISCMailing ListPatchThird Party AdvisoryFIX