CVE-2022-24122: Use After Free
First published: Sat Jan 29 2022(Updated: )
kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.14<5.15.19 | |
| Linux Linux kernel | >=5.16<5.16.5 | |
| Netapp Baseboard Management Controller H410c Firmware | ||
| Netapp Baseboard Management Controller H410c | ||
| Netapp Baseboard Management Controller H300s Firmware | ||
| Netapp Baseboard Management Controller H300s | ||
| Netapp Baseboard Management Controller H500s Firmware | ||
| Netapp Baseboard Management Controller H500s | ||
| Netapp Baseboard Management Controller H700s Firmware | ||
| Netapp Baseboard Management Controller H700s | ||
| Netapp Baseboard Management Controller H300e Firmware | ||
| Netapp Baseboard Management Controller H300e | ||
| Netapp Baseboard Management Controller H500e Firmware | ||
| Netapp Baseboard Management Controller H500e | ||
| Netapp Baseboard Management Controller H700e Firmware | ||
| Netapp Baseboard Management Controller H700e | ||
| Netapp Baseboard Management Controller H410s Firmware | ||
| Netapp Baseboard Management Controller H410s | ||
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| All of | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| All of | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| All of | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| All of | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| All of | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| All of | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| All of | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| All of | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
Remedy
Disable unprivileged user namespaces: sysctl -w kernel.unprivileged_userns_clone=0
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Reference Links
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5
- https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B/
- https://security.netapp.com/advisory/ntap-20220221-0001/
- https://www.openwall.com/lists/oss-security/2022/01/29/1
- https://launchpad.net/bugs/cve/CVE-2022-24122
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B/
- https://git.kernel.org/linus/f9d87929d451d3e649699d0f1d74f71f77ad38f5
- https://security-tracker.debian.org/tracker/CVE-2022-24122
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24122
- https://nvd.nist.gov/vuln/detail/CVE-2022-24122
- https://ubuntu.com/security/CVE-2022-24122
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/remedy
- agent/author
- agent/severity
- agent/description
- agent/weakness
- agent/references
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-api
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.14
- version/linux linux kernel/5.16
- vendor/netapp
- canonical/netapp baseboard management controller h410c firmware
- canonical/netapp baseboard management controller h410c
- canonical/netapp baseboard management controller h300s firmware
- canonical/netapp baseboard management controller h300s
- canonical/netapp baseboard management controller h500s firmware
- canonical/netapp baseboard management controller h500s
- canonical/netapp baseboard management controller h700s firmware
- canonical/netapp baseboard management controller h700s
- canonical/netapp baseboard management controller h300e firmware
- canonical/netapp baseboard management controller h300e
- canonical/netapp baseboard management controller h500e firmware
- canonical/netapp baseboard management controller h500e
- canonical/netapp baseboard management controller h700e firmware
- canonical/netapp baseboard management controller h700e
- canonical/netapp baseboard management controller h410s firmware
- canonical/netapp baseboard management controller h410s
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- version/fedoraproject fedora/35
- canonical/netapp h410c firmware
- canonical/netapp h410c
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- package-manager/debian