7.8

CVE-2019-7221

Exploit
The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 4.20.5
Opensuse ≫ Leap Version 15.0
Fedoraproject ≫ Fedora Version 28
Fedoraproject ≫ Fedora Version 29
Debian ≫ Debian Linux Version 8.0
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Redhat ≫ Enterprise Linux Version 7.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.81% 0.519
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 4.6 3.9 6.4
AV:L/AC:L/Au:N/C:P/I:P/A:P
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://access.redhat.com/errata/RHSA-2019:4058
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
Third Party Advisory
Mailing List
https://access.redhat.com/errata/RHSA-2019:3967
https://usn.ubuntu.com/3932-1/
Third Party Advisory
https://usn.ubuntu.com/3932-2/
Third Party Advisory
https://usn.ubuntu.com/3931-1/
Third Party Advisory
https://usn.ubuntu.com/3931-2/
Third Party Advisory
https://usn.ubuntu.com/3930-1/
Third Party Advisory
https://usn.ubuntu.com/3930-2/
Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0959
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0818
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0833
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0002/
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html
Third Party Advisory
Mailing List
http://packetstormsecurity.com/files/151713/KVM-VMX-Preemption-Timer-Use-After-Free.html
Third Party Advisory
VDB Entry
http://www.openwall.com/lists/oss-security/2019/02/18/2
Patch
Third Party Advisory
Mailing List
https://bugs.chromium.org/p/project-zero/issues/detail?id=1760
Patch
Third Party Advisory
Exploit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecec76885bcfe3294685dc363fd1273df0d5d65f
Patch
Vendor Advisory
Mailing List
https://github.com/torvalds/linux/commits/master/arch/x86/kvm
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDOXCX3QFVWYXH5CQMGDDE7H6MUG5XGG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2HMABEMJDPA6LPCBE5WIEZXUKY7DLTN/
https://support.f5.com/csp/article/K08413011