5.5

CVE-2018-19364

hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading to (for example) a use-after-free outcome.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Qemu ≫ Qemu Version <= 3.0.0
Qemu ≫ Qemu Version 3.1.0 Update rc0
Qemu ≫ Qemu Version 3.1.0 Update rc1
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
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Fedoraproject ≫ Fedora Version 29
Opensuse ≫ Leap Version 42.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.53% 0.405
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NIST 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
Third Party Advisory
Mailing List
https://seclists.org/bugtraq/2019/May/76
Third Party Advisory
Mailing List
https://usn.ubuntu.com/3826-1/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4454
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
http://www.openwall.com/lists/oss-security/2018/11/20/1
Patch
Third Party Advisory
Mailing List
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.html
Patch
Vendor Advisory
Mailing List
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.html
Patch
Vendor Advisory
Mailing List