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CVE-2020-25637 libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c
From: Mauro Matteo Cascella <mcascell () redhat com>
Date: Fri, 2 Oct 2020 11:30:01 +0200
Hello, 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. CVE-2020-25637 has been assigned for this flaw. Fixed in libvirt v6.8.0 (2020-10-01). Upstream commits: * 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 Credit: Ilja Van Sprundel (IOActive). Thank you, -- Mauro Matteo Cascella, Red Hat Product Security 6F78 E20B 5935 928C F0A8 1A9D 4E55 23B8 BB34 10B0
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- CVE-2020-25637 libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c Mauro Matteo Cascella (Oct 02)