CVE-2021-20270

CVE-2021-20270 describes an infinite loop in Pygments’ SMLLexer, affecting Pygments 1.5–2.7.3, which can cause DoS during syntax highlighting of StandardML sources (e.g., input containing only the keyword “exception”). Connected advisories confirm affected distributions (e.g., Debian, AlmaLinux, ...

CVE-2021-20267

CVE-2021-20267 affects OpenStack Neutron when using the Open vSwitch driver. The flaw resides in Neutron’s default Open vSwitch firewall rules, allowing an attacker who controls a server instance connected to the virtual switch to impersonate other IPv6 addresses, potentially causing denial of se...

CVE-2019-12067

CVE-2019-12067 affects QEMU’s AHCI emulation: the ahci_commit_buf function in ide/ahci.c can dereference a NULL ad->cur_cmd, causing a denial of service (host QEMU process denial). Public docs (NVD entry) confirm the vulnerability and impact (availability) with local access required; EulerOS/N...

CVE-2020-1690

openstack-selinux contains an improper authorization flaw in its applied policy that allows a non-root user in a container to escalate privileges by interacting with dbus, potentially starting/stopping services and causing denial of service. Affected are versions before openstack-selinux 0.8.24. ...