CVE-2022-0847
Published Mar 10, 2022
Last updated 7 months ago
AI description
Automated description summarized from trusted sources.
CVE-2022-0847, commonly known as "Dirty Pipe," is a vulnerability discovered in the Linux kernel. The flaw stems from improper initialization of the "flags" member within the new pipe buffer structure in the `copy_page_to_iter_pipe` and `push_pipe` functions. This oversight could lead to stale values being present in the flags, affecting Linux kernel versions 5.8 and later. This vulnerability allows an unprivileged local user to write to pages in the page cache that are backed by read-only files. By exploiting this ability to overwrite data in arbitrary read-only files, an attacker can achieve privilege escalation on the system. This includes the potential to modify sensitive files, such as root passwords or SUID binaries.
- 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.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
- Products
- linux_kernel, fedora, enterprise_linux, enterprise_linux_eus, enterprise_linux_for_ibm_z_systems, enterprise_linux_for_ibm_z_systems_eus, enterprise_linux_for_power_little_endian, enterprise_linux_for_power_little_endian_eus, enterprise_linux_for_real_time, enterprise_linux_for_real_time_for_nfv, enterprise_linux_for_real_time_for_nfv_tus, enterprise_linux_for_real_time_tus, enterprise_linux_server_aus, enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions, enterprise_linux_server_tus, enterprise_linux_server_update_services_for_sap_solutions, codeready_linux_builder, virtualization_host, ovirt-engine, h300s_firmware, h500s_firmware, h700s_firmware, h300e_firmware, h500e_firmware, h700e_firmware, h410s_firmware, h410c_firmware, scalance_lpe9403_firmware, sma1000_firmware
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.2
- Impact score
- 10
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:C/I:C/A:C
Data from CISA
- Vulnerability name
- Linux Kernel Privilege Escalation Vulnerability
- Exploit added on
- Apr 25, 2022
- Exploit action due
- May 16, 2022
- Required action
- Apply updates per vendor instructions.
- Hype score
- Not currently trending
2026 Linux 重置密码教程大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@furlingdu
1 Jun 2026
158 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
- Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300) -PinTheft (CVE-2026-43494)
@luadoles
22 May 2026
193 Impressions
0 Retweets
0 Likes
0 Bookmarks
1 Reply
0 Quotes
Linux 重置密码大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300) -PinTheft (CVE-2026-4
@hsn8086k
22 May 2026
37707 Impressions
101 Retweets
633 Likes
317 Bookmarks
40 Replies
7 Quotes
2026 Linux 如何重置密碼 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@sayaalauun
14 May 2026
76 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Them: Linux is most secure OS Me: Yes - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@hetmehtaa
14 May 2026
72711 Impressions
41 Retweets
378 Likes
163 Bookmarks
40 Replies
15 Quotes
2026 Linux 重置密码教程大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@hsn8086k
14 May 2026
69819 Impressions
179 Retweets
1061 Likes
459 Bookmarks
12 Replies
11 Quotes
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