libvirt: Multiple vulnerabilities (CVE-2020-10703, CVE-2020-12430)
CVE-2020-10703: Potential denial of service via active pool without target path
A flaw was found in libvirt. A pool created without a target path may lead to segmentation fault and denial of service. This issue may be triggered by a read only user.
Fixed In Version:
libvirt 6.0.0
Reference:
https://security-tracker.debian.org/tracker/CVE-2020-10703
Patch:
https://libvirt.org/git/?p=libvirt.git;a=commit;h=dfff16a7c261f8d28e3abe60a47165f845fa952f
CVE-2020-12430: memory leak in domstats may allow read-only user to perform DoS attack
An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged users with a read-only connection to cause a memory leak in the domstats command, resulting in a potential denial of service.
Reference:
https://nvd.nist.gov/vuln/detail/CVE-2020-12430
Patch:
https://libvirt.org/git/?p=libvirt.git;a=commit;h=9bf9e0ae6af38c806f4672ca7b12a6b38d5a9581
Affected branches:
-
master (7734b4b3) -
3.11-stable -
3.10-stable -
3.9-stable -
3.8-stable