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Mend.io Vulnerability Database

CVE-2022-0847

Date: March 6, 2022

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.

Language: C

Severity Score

7.8

Related Resources (17)

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-0847

Url: https://github.com/gregkh/linux/commit/9d2231c5d74e13b2a0546fee6737ee4446017903

Url: https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

Url: http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2060795

Url: https://access.redhat.com/security/cve/CVE-2022-0847

Url: https://security-tracker.debian.org/tracker/CVE-2022-0847

Url: http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html

Url: http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html

Url: https://www.suse.com/support/kb/doc/?id=000020603

Url: https://security.netapp.com/advisory/ntap-20220325-0005/

Url: https://dirtypipe.cm4all.com/

Url: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0847

Url: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015

Url: http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-0847

Url: https://www.mend.io/vulnerability-database/CVE-2022-0847

Severity Score

7.8

Weakness Type (CWE)

Improper Initialization

CWE-665

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2022-0847

Date: March 6, 2022

Language: C

Severity Score

Related Resources (17)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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