CVE-2019-12067

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-02 · updated 2026-06-17
Weakness: CWE-476

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.

Affected products

Debian Linux: 9.0, 10.0, 11.0
Fedoraproject Fedora: 30
QEMU: all versions
Red Hat Enterprise Linux: 8.0
nova_libvirt container provided by the Red Hat OpenStack Platform: 10.0, 14.0

References

https://bugzilla.suse.com/show_bug.cgi?id=1145642
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01358.html
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01487.html
https://security-tracker.debian.org/tracker/CVE-2019-12067
https://security.netapp.com/advisory/ntap-20210727-0001/
https://bugzilla.suse.com/show_bug.cgi?id=1145642
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01358.html
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01487.html
https://security-tracker.debian.org/tracker/CVE-2019-12067
https://security.netapp.com/advisory/ntap-20210727-0001/

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