CVE-2022-1048: Use After Free
First published: Tue Mar 22 2022(Updated: )
A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. 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 | <0:5.14.0-162.6.1.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/Linux kernel | <5.17 | 5.17 |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.19-1 6.12.20-1 | |
| Linux Kernel | >=2.6.12<4.14.279 | |
| Linux Kernel | >=4.15<4.19.243 | |
| Linux Kernel | >=4.20<5.4.193 | |
| Linux Kernel | >=5.5<5.10.109 | |
| Linux Kernel | >=5.11<5.15.32 | |
| Linux Kernel | >=5.16<5.16.18 | |
| Linux Kernel | =5.17 | |
| Red Hat Enterprise Linux | =8.0 | |
| Debian Linux | =10.0 | |
| Debian Linux | =11.0 | |
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H300S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H500S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H700S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H410S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H300E | ||
| NetApp Baseboard Management Controller H500E Firmware | ||
| NetApp Baseboard Management Controller H500E Firmware | ||
| NetApp Baseboard Management Controller H700E Firmware | ||
| NetApp Baseboard Management Controller H700E Firmware | ||
| NetApp Baseboard Management Controller H410C | ||
| NetApp Baseboard Management Controller H410C Firmware |
Remedy
To mitigate this issue, prevent the module snd-pcm from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-1048 https://nvd.nist.gov/vuln/detail/CVE-2022-1048 https://lore.kernel.org/lkml/20220322170720.3529-5-tiwai@suse.de/T/#m1d3b791b815556012c6be92f1c4a7086b854f7f3
- https://bugzilla.redhat.com/show_bug.cgi?id=2066706
- 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/security/cve/cve-2022-1048
- https://lore.kernel.org/lkml/20220322170720.3529-5-tiwai@suse.de/T/#m1d3b791b815556012c6be92f1c4a7086b854f7f3
- https://security.netapp.com/advisory/ntap-20220629-0001/
- https://www.debian.org/security/2022/dsa-5127
- https://www.debian.org/security/2022/dsa-5173
- https://launchpad.net/bugs/cve/CVE-2022-1048
- https://lore.kernel.org/lkml/20220322170720.3529-5-tiwai%40suse.de/T/#m1d3b791b815556012c6be92f1c4a7086b854f7f3
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2068257
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2066706#c12
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2068254
- https://access.redhat.com/errata/RHSA-2024:4107
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1048
- https://nvd.nist.gov/vuln/detail/CVE-2022-1048
- https://security-tracker.debian.org/tracker/CVE-2022-1048
- https://ubuntu.com/security/CVE-2022-1048
- https://www.openwall.com/lists/oss-security/2022/03/28/4
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2022-1048?
CVE-2022-1048 is considered a high severity vulnerability due to its potential to allow local users to crash the system or escalate privileges.
How do I fix CVE-2022-1048?
To mitigate CVE-2022-1048, update to the patched kernel versions specified for your distribution.
Which versions of the Linux kernel are affected by CVE-2022-1048?
CVE-2022-1048 affects Linux kernel versions between 2.6.12 and 5.17, with specific ranges depending on your distribution.
Does CVE-2022-1048 affect Red Hat Enterprise Linux?
Yes, CVE-2022-1048 affects various versions of Red Hat Enterprise Linux kernel packages, including kernel-rt and kernel.
Can CVE-2022-1048 be exploited remotely?
CVE-2022-1048 does not appear to be exploitable remotely as it requires local user access.
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