CVE-2022-2078: Buffer Overflow
First published: Tue May 31 2022(Updated: )
A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code.
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 | <0:5.14.0-70.26.1.el9_0 | 0:5.14.0-70.26.1.el9_0 |
| redhat/kernel-rt | <0:5.14.0-70.26.1.rt21.98.el9_0 | 0:5.14.0-70.26.1.rt21.98.el9_0 |
| Linux Linux kernel | <5.19 | |
| Redhat Virtualization | =4.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| Debian Debian Linux | =11.0 | |
| redhat/kernel | <5.19 | 5.19 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
Remedy
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.
Remedy
If not needed, disable the ability for unprivileged users to create namespaces: $ sudo sysctl -w kernel.unprivileged_userns_clone=0 $ echo kernel.unprivileged_userns_clone=0 | \ sudo tee /etc/sysctl.d/99-disable-unpriv-userns.conf
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-2078 https://nvd.nist.gov/vuln/detail/CVE-2022-2078 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
- https://bugzilla.redhat.com/show_bug.cgi?id=2096178
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2022:6610
- https://access.redhat.com/errata/RHSA-2022:6582
- https://access.redhat.com/security/cve/cve-2022-2078
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
- https://www.debian.org/security/2022/dsa-5161
- https://launchpad.net/bugs/cve/CVE-2022-2078
- https://git.kernel.org/linus/fecf31ee395b0295f2d7260aa29946b7605f7c85
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2096178#c9
- https://access.redhat.com/security/cve/CVE-2022-2078
- https://access.redhat.com/security/cve/CVE-2022-1972
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2092537
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2096178#c10
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/
- https://www.openwall.com/lists/oss-security/2022/06/02/1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2078
- https://access.redhat.com/errata/RHSA-2024:0724
- https://security-tracker.debian.org/tracker/CVE-2022-2078
- https://nvd.nist.gov/vuln/detail/CVE-2022-2078
- https://ubuntu.com/security/CVE-2022-2078
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/type
- agent/author
- agent/weakness
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-2078
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/remedy
- agent/tags
- agent/last-modified-date
- collector/nvd-cve
- source/NVD
- collector/usn-cve
- source/Ubuntu
- agent/event
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- vendor/redhat
- canonical/redhat virtualization
- version/redhat virtualization/4.0
- canonical/redhat enterprise linux
- version/redhat enterprise linux/8.0
- version/redhat enterprise linux/9.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/11.0
- package-manager/debian