CVE-2023-3354
Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service
概要
Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2023-3354 qemu 修正版: 1:5.2+dfsg-11+deb11u3
- Ubuntu UBUNTU-CVE-2023-3354 qemu 修正版: 1:2.11+dfsg-1ubuntu7.42+esm5
参照URL
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- report bugzilla.redhat.com
- web access.redhat.com
- web lists.debian.org
- web lists.fedoraproject.org
- web packages.fedoraproject.org