Arch Linux

Description:
A double free memory issue was found to occur in the libvirt API responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVE-2020-25637.patch [1] contains 955029bd0ad7ef96000f529ac38204a8f4a96401, 50864dcda191eb35732dbd80fb6ca251a6bba923, e4116eaa44cb366b59f7fe98f4b88d04c04970ad and a63b48c5ecef077bf0f909a85f453a605600cf05 backported to 6.5.
a63b48c5ecef077bf0f909a85f453a605600cf05 required manually merging as virStringListFree was changed to g_strfreev(ifname).
PKGBUILD.diff [2] is against 6.5.0-2 and also includes proposed fix for  FS#67921 .

Additional info:
* libvirt 6.5.0-2
* https://access.redhat.com/security/cve/cve-2020-25637
* https://libvirt.org/git/?p=libvirt.git;a=commit;h=955029bd0ad7ef96000f529ac38204a8f4a96401
* https://libvirt.org/git/?p=libvirt.git;a=commit;h=50864dcda191eb35732dbd80fb6ca251a6bba923
* https://libvirt.org/git/?p=libvirt.git;a=commit;h=e4116eaa44cb366b59f7fe98f4b88d04c04970ad
* https://libvirt.org/git/?p=libvirt.git;a=commit;h=a63b48c5ecef077bf0f909a85f453a605600cf05
[1] CVE-2020-25637.patch
[2] PKGBUILD.diff