Libvirt: stack use-after-free in virnetclientioeventloop()
概要
Libvirt: stack use-after-free in virnetclientioeventloop()
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 race condition leading to a stack use-after-free flaw was found in libvirt. Due to a bad assumption in the virNetClientIOEventLoop() method, the data pointer to a stack-allocated virNetClientIOEventData structure ended up being used in the virNetClientIOEventFD callback while the data pointer's stack frame was concurrently being "freed" when returning from virNetClientIOEventLoop(). The 'virtproxyd' daemon can be used to trigger requests. If libvirt is configured with fine-grained access control, this issue, in theory, allows a user to escape their otherwise limited access. This flaw allows a local, unprivileged user to access virtproxyd without authenticating. Remote users would need to authenticate before they could access it.
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-2024-4418 libvirt 修正版: 10.3.0-1
参照URL
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- package gitlab.com
- report bugzilla.redhat.com
- web access.redhat.com
- web lists.fedoraproject.org
- web lists.fedoraproject.org