CVE-2022-23222: Null Pointer Dereference
First published: Fri Jan 14 2022(Updated: )
kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.17 | 5.17 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Linux Kernel | >=5.8.0<5.15.37 | |
| Linux Kernel | >=5.16<5.16.11 | |
| Debian | =11.0 | |
| All of | ||
| netapp h410c | ||
| netapp h410c firmware | ||
| All of | ||
| netapp h300s | ||
| netapp h300s firmware | ||
| All of | ||
| netapp h500s | ||
| NetApp H500S Firmware | ||
| All of | ||
| netapp h700s | ||
| netapp h700s firmware | ||
| All of | ||
| netapp h300e | ||
| netapp h300e firmware | ||
| All of | ||
| netapp h500e | ||
| netapp h500e firmware | ||
| All of | ||
| netapp h700e | ||
| netapp h700e firmware | ||
| All of | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| Fedora | =34 | |
| Fedora | =35 | |
| netapp h410c firmware | ||
| netapp h410c | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| netapp h410s firmware | ||
| netapp h410s |
Remedy
seth-arnold> set kernel.unprivileged_bpf_disabled to 1
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Reference Links
- https://www.openwall.com/lists/oss-security/2022/01/13/1
- http://www.openwall.com/lists/oss-security/2022/01/14/1
- http://www.openwall.com/lists/oss-security/2022/01/18/2
- https://www.debian.org/security/2022/dsa-5050
- https://security.netapp.com/advisory/ntap-20220217-0002/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCR3LIRUEXR7CA63W5M2HT3K63MZGKBR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z5VTIZZUPC73IEJNZX66BY2YCBRZAELB/
- http://www.openwall.com/lists/oss-security/2022/06/01/1
- http://www.openwall.com/lists/oss-security/2022/06/04/3
- http://www.openwall.com/lists/oss-security/2022/06/07/3
- https://bugzilla.suse.com/show_bug.cgi?id=1194765
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=64620e0a1e712a778095bd35cbb277dc2259281f
- https://launchpad.net/bugs/cve/CVE-2022-23222
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCR3LIRUEXR7CA63W5M2HT3K63MZGKBR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5VTIZZUPC73IEJNZX66BY2YCBRZAELB/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23222
- https://nvd.nist.gov/vuln/detail/CVE-2022-23222
- https://security-tracker.debian.org/tracker/CVE-2022-23222
- https://ubuntu.com/security/CVE-2022-23222
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2043521
- https://access.redhat.com/errata/RHSA-2024:0724
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/errata/RHSA-2024:10262
- https://bugzilla.redhat.com/show_bug.cgi?id=2043520
Frequently Asked Questions
What is the severity of CVE-2022-23222?
CVE-2022-23222 is considered a high severity vulnerability as it allows local users to gain elevated privileges in the Linux kernel.
How do I fix CVE-2022-23222?
To fix CVE-2022-23222, update the Linux kernel to version 5.17 or higher.
Which versions of Linux Kernel are affected by CVE-2022-23222?
CVE-2022-23222 affects Linux kernel versions from 5.8.0 to 5.15.14, excluding version 5.17.
What types of attacks are possible due to CVE-2022-23222?
CVE-2022-23222 allows for local privilege escalation attacks due to exploitable pointer arithmetic.
Is my system vulnerable to CVE-2022-23222 if I am using Debian 11?
Yes, Debian 11 can be vulnerable to CVE-2022-23222 if it uses an affected version of the Linux kernel.
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- canonical/netapp h500s firmware
- canonical/netapp h700s
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