CVE-2022-0847 Linux Kernel Privilege Escalation

What is CVE-2022-0847?

CVE-2022-0847 is a high-severity vulnerability in Fedoraproject Fedora, published on 7 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Weakness: CWE-665

Which versions are affected by CVE-2022-0847?

It affects 29 products.

Products include Fedoraproject Fedora, Linux kernel, Netapp H300e Firmware, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware and 23 more.

How do I fix CVE-2022-0847?

Apply the vendor's patch. US federal agencies must fix it by 16 May 2022.

Is CVE-2022-0847 being exploited?

Yes. Attackers have exploited CVE-2022-0847 in the wild since at least 25 Apr 2022.

Public exploit code: 1 Metasploit module, 1 Exploit-DB entry and 109 proofs of concept on GitHub.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• How this page is made

Also known as A-220741611, ASB-A-220741611, AZL-8900, CLSA-2022-1648067859, CLSA-2022-1648068022, DEBIAN-CVE-2022-0847 and 3 more.