CVE-2022-2639
First published: Fri Apr 15 2022(Updated: )
An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-425.3.1.rt7.213.el8 | 0:4.18.0-425.3.1.rt7.213.el8 |
| redhat/kernel | <0:4.18.0-425.3.1.el8 | 0:4.18.0-425.3.1.el8 |
| redhat/kernel | <0:4.18.0-147.78.1.el8_1 | 0:4.18.0-147.78.1.el8_1 |
| redhat/kernel | <0:4.18.0-193.95.1.el8_2 | 0:4.18.0-193.95.1.el8_2 |
| redhat/kernel-rt | <0:4.18.0-193.95.1.rt13.146.el8_2 | 0:4.18.0-193.95.1.rt13.146.el8_2 |
| redhat/kernel-rt | <0:4.18.0-305.72.1.rt7.144.el8_4 | 0:4.18.0-305.72.1.rt7.144.el8_4 |
| redhat/kernel | <0:4.18.0-305.72.1.el8_4 | 0:4.18.0-305.72.1.el8_4 |
| redhat/kernel | <0:4.18.0-372.36.1.el8_6 | 0:4.18.0-372.36.1.el8_6 |
| redhat/kernel | <0:5.14.0-162.6.1.el9_1 | 0:5.14.0-162.6.1.el9_1 |
| redhat/kernel-rt | <0:5.14.0-162.6.1.rt21.168.el9_1 | 0:5.14.0-162.6.1.rt21.168.el9_1 |
| redhat/kernel | <0:5.14.0-70.36.1.el9_0 | 0:5.14.0-70.36.1.el9_0 |
| redhat/kernel-rt | <0:5.14.0-70.36.1.rt21.108.el9_0 | 0:5.14.0-70.36.1.rt21.108.el9_0 |
| redhat/kernel | <5.18 | 5.18 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 | |
| Linux Kernel | >=3.18.139<3.19 | |
| Linux Kernel | >=4.4.179<4.5 | |
| Linux Kernel | >=4.9.169<4.9.312 | |
| Linux Kernel | >=4.14.112<4.14.277 | |
| Linux Kernel | >=4.19.35<4.19.240 | |
| Linux Kernel | >=5.0.8<5.4.191 | |
| Linux Kernel | >=5.5<5.10.113 | |
| Linux Kernel | >=5.11<5.15.36 | |
| Linux Kernel | >=5.16<5.17.5 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =9.0 |
Remedy
To mitigate this issue, it is possible to prevent the affected code from being loaded by blocklisting the openvswitch kernel module. For instructions relating to blocklisting a kernel module, please see https://access.redhat.com/solutions/41278.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-2639 https://nvd.nist.gov/vuln/detail/CVE-2022-2639
- https://bugzilla.redhat.com/show_bug.cgi?id=2084479
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2023:0058
- https://access.redhat.com/errata/RHSA-2023:0059
- https://access.redhat.com/errata/RHSA-2022:8940
- https://access.redhat.com/errata/RHSA-2022:8941
- https://access.redhat.com/errata/RHSA-2022:8989
- https://access.redhat.com/errata/RHSA-2022:8765
- https://access.redhat.com/errata/RHSA-2022:8767
- https://access.redhat.com/errata/RHSA-2022:8768
- https://access.redhat.com/errata/RHSA-2022:8809
- https://access.redhat.com/errata/RHSA-2022:8831
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/errata/RHSA-2022:8973
- https://access.redhat.com/errata/RHSA-2022:8974
- https://access.redhat.com/errata/RHSA-2022:9082
- https://access.redhat.com/security/cve/cve-2022-2639
- https://github.com/torvalds/linux/commit/cefa91b2332d7009bc0be5d951d6cbbf349f90f8
- https://launchpad.net/bugs/cve/CVE-2022-2639
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2084479#c40
- https://lolbeans.online
- https://vnvideoeditorpc.com/
- http://tekken3.vip/
- https://bloxfruitscript.com/
- https://evonexecutor.com/
- https://terasacucarti-ro.com/
- https://git.kernel.org/linus/cefa91b2332d7009bc0be5d951d6cbbf349f90f8
- https://security-tracker.debian.org/tracker/CVE-2022-2639
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2639
- https://nvd.nist.gov/vuln/detail/CVE-2022-2639
- https://ubuntu.com/security/CVE-2022-2639
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/weakness
- agent/severity
- agent/author
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-2639
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- collector/usn-cve
- source/Ubuntu
- agent/event
- agent/description
- agent/last-modified-date
- agent/trending
- agent/source
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/nvd-api
- package-manager/redhat
- package-manager/debian
- vendor/linux
- canonical/linux kernel
- version/linux kernel/3.18.139
- version/linux kernel/4.4.179
- version/linux kernel/4.9.169
- version/linux kernel/4.14.112
- version/linux kernel/4.19.35
- version/linux kernel/5.0.8
- version/linux kernel/5.5
- version/linux kernel/5.11
- version/linux kernel/5.16
- vendor/redhat
- canonical/red hat enterprise linux
- version/red hat enterprise linux/8.0
- version/red hat enterprise linux/9.0