Bug 1895961 (CVE-2020-25704)

Summary: CVE-2020-25704 kernel: perf_event_parse_addr_filter memory
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, adscvr, airlied, bhu, blc, bmasney, brdeoliv, bskeggs, dhoward, dramseur, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, itamar, jarodwilson, jeremy, jforbes, jglisse, jhunter, jlelli, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, kmitts, lgoncalv, linville, masami256, mchehab, mcressma, mgala, mjg59, mjudeiki, mlangsdo, mmilgram, nmurray, ptalbert, qzhao, rt-maint, rvrbovsk, steved, walters, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 5.10-rc3 Doc Type: If docs needed, set a value
Doc Text:
A memory leak flaw was found in the Linux kernel’s performance monitoring subsystem when using PERF_EVENT_IOC_SET_FILTER. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-05-18 20:37:01 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1895963, 1901932, 1901933, 1901934, 1901935, 1901936, 1962330, 1962331    
Bug Blocks: 1895965    

Description Dhananjay Arunesh 2020-11-09 14:50:59 UTC
There is a memory leak in perf_event_parse_addr_filter.

Comment 1 Dhananjay Arunesh 2020-11-09 14:51:47 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1895963]

Comment 2 Dhananjay Arunesh 2020-11-09 14:52:33 UTC
References:
https://www.openwall.com/lists/oss-security/2020/11/09/1

Comment 6 Petr Matousek 2020-11-26 15:41:15 UTC
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Comment 7 errata-xmlrpc 2021-05-18 13:20:27 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1578 https://access.redhat.com/errata/RHSA-2021:1578

Comment 8 errata-xmlrpc 2021-05-18 14:40:49 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1739 https://access.redhat.com/errata/RHSA-2021:1739

Comment 9 Product Security DevOps Team 2021-05-18 20:37:01 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-25704

Comment 11 errata-xmlrpc 2021-07-20 21:27:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:2719 https://access.redhat.com/errata/RHSA-2021:2719

Comment 12 errata-xmlrpc 2021-07-20 22:10:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:2718 https://access.redhat.com/errata/RHSA-2021:2718

Comment 13 errata-xmlrpc 2022-01-11 17:29:51 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:0063 https://access.redhat.com/errata/RHSA-2022:0063

Comment 14 errata-xmlrpc 2022-01-11 17:31:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:0065 https://access.redhat.com/errata/RHSA-2022:0065