Home/CVE/The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.
CVE

CVE-2019-7221

The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.

The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.

HIGH · CVSS 7.8 EPSS 0.00055
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

15
linux kernel<= 4.20.5
opensuse leapall versions
fedoraproject fedoraall versions
debian linuxall versions
canonical ubuntu linuxall versions
netapp active iq performance analytics servicesall versions
netapp element software management nodeall versions
redhat openshift container platformall versions
⚠

Public Exploits & PoCs

2
pocpacketstormsecurity.com · KVM-VMX-Preemption-Timer-Use-After-Free.htmlpacketstormsecurity.com
pocbugs.chromium.org · detail?id=1760bugs.chromium.org
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Mar 2019 · 04:01 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:10728-1
suse-csafopenSUSE-SU-2024:13704-1
suse-csafSUSE-SU-2019:1289-1
rhsaRHSA-2019:4058Moderate
rhsaRHSA-2019:3967Important
🔗

References & Sources

19
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.htmlMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/02/18/2Mailing ListPatchThird Party Advisory
https://access.redhat.com/errata/RHBA-2019:0959Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0833Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65fMailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commits/master/arch/x86/kvmThird Party Advisory
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