CVE-2022-1016: Use After Free
First published: Tue Mar 22 2022(Updated: )
A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.
Credit: 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 | <0:5.14.0-162.6.1.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 | <0:5.14.0-70.64.1.el9_0 | 0:5.14.0-70.64.1.el9_0 |
| redhat/kernel-rt | <0:5.14.0-70.64.1.rt21.135.el9_0 | 0:5.14.0-70.64.1.rt21.135.el9_0 |
| Linux Linux kernel | <=3.12 | |
| Linux Linux kernel | >=3.13<=5.17 | |
| Linux Linux kernel | =3.13-rc1 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.6-1 |
Remedy
On non-containerized deployments of Red Hat Enterprise Linux, you can disable user namespaces by setting user.max_user_namespaces to 0: # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf On containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-1016 https://nvd.nist.gov/vuln/detail/CVE-2022-1016 http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/ https://seclists.org/oss-sec/2022/q1/205
- https://bugzilla.redhat.com/show_bug.cgi?id=2066614
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/errata/RHSA-2023:4137
- https://access.redhat.com/errata/RHSA-2023:4138
- https://access.redhat.com/security/cve/CVE-2022-1016
- http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/
- https://seclists.org/oss-sec/2022/q1/205
- https://launchpad.net/bugs/cve/CVE-2022-1016
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2069488
- https://access.redhat.com/security/cve/cve-2022-1016
- https://access.redhat.com/errata/RHSA-2024:0412
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1016
- https://nvd.nist.gov/vuln/detail/CVE-2022-1016
- https://security-tracker.debian.org/tracker/CVE-2022-1016
- https://ubuntu.com/security/CVE-2022-1016
- https://www.openwall.com/lists/oss-security/2022/03/28/5
- https://git.kernel.org/linus/4c905f6740a365464e91467aa50916555b28213d
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/weakness
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-1016
- collector/mitre-cve
- source/MITRE
- collector/usn-cve
- source/Ubuntu
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- collector/nvd-cve
- source/NVD
- agent/last-modified-date
- agent/references
- agent/remedy
- agent/tags
- agent/description
- agent/softwarecombine
- agent/event
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/3.12
- version/linux linux kernel/3.13
- version/linux linux kernel/5.17
- version/linux linux kernel/3.13-rc1
- vendor/redhat
- canonical/redhat enterprise linux
- version/redhat enterprise linux/8.0
- version/redhat enterprise linux/9.0
- package-manager/debian