This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.

Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). User interaction is not needed for exploitation.Īn issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. This could lead to local escalation of privilege with System execution privileges needed. There is a possible use after free due to a race condition. Attackers must generate repeated API requests to trigger a race condition with concurrent user activity in the self-service portal. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.ĭefective request context handling in Self Service in LinOTP 3.x before 3.2.5 allows remote unauthenticated attackers to escalate privileges, thereby allowing them to act as and with the permissions of another user. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1 as well as certified-asterisk prior to 18.9-cert6 Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This makes it possible for unauthenticated attackers to place multiple votes on a single poll even when the poll is set to one vote per person.Īsterisk is an open source private branch exchange and telephony toolkit. This is due to improper restrictions on the add() function. The YOP Poll plugin for WordPress is vulnerable to a race condition in all versions up to, and including, 6.5.26.

A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread.

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation.

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