Dirty Pipe
A local privilege escalation vulnerability in the Linux kernel caused by improper initialization of pipe buffer flags, which allows an attacker to overwrite read-only files. It affects kernel versions 5.8 and later.
Timeline (last 90 days)
The Dirty Pipe vulnerability (CVE-2022-0847) stems from flag bits in the Linux kernel pipe buffer not being properly initialized, allowing an attacker to overwrite read-only files.
Historically, several well-known escape vulnerabilities (such as Dirty COW, Dirty Pipe, and the overlayfs privilege escalation series) all stemmed from kernel subsystem flaws.
All Facts (2)
The Dirty Pipe vulnerability (CVE-2022-0847) stems from flag bits in the Linux kernel pipe buffer not being properly initialized, allowing an attacker to overwrite read-only files.
50%UnverifiedHistorically, several well-known escape vulnerabilities (such as Dirty COW, Dirty Pipe, and the overlayfs privilege escalation series) all stemmed from kernel subsystem flaws.
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