Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-25637: 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. 1881037: CVE-2020-25637 libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c
Fixed packages 32
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | libvirt | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-admin | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-bash-completion | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-client | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-config-network | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-config-nwfilter | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-interface | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-lxc | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-network | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-nodedev | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-nwfilter | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-qemu | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-secret | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-core | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-disk | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-gluster | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-iscsi | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-logical | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-mpath | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-rbd | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-driver-storage-scsi | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-kvm | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-daemon-lxc | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-debuginfo | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-devel | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-docs | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-libs | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-lock-sanlock | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-login-shell | 0:4.5.0-36.amzn2.3 |
| Amazon Linux · 2 | libvirt-nss | 0:4.5.0-36.amzn2.3 |
Vulnerabilities 1
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Unscored —CVE-2020-25637 Public exploit
A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting …
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2020-25637.html