漏洞信息
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Vulnerability Title
N/A
Vulnerability Description
A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
释放后使用
Vulnerability Title
EnterpriseDB pglogical 资源管理错误漏洞
Vulnerability Description
EnterpriseDB pglogical是美国EnterpriseDB公司开源的一款数据库逻辑复制扩展。 EnterpriseDB pglogical 2.4.8之前版本存在资源管理错误漏洞,该漏洞源于worker signaling code中存在释放后重用,可能导致复制工作进程崩溃,造成拒绝服务,最坏情况下可能被利用实现远程代码执行。
CVSS Information
N/A
Vulnerability Type
N/A