CVE-2022-28893: Use After Free
First published: Mon Apr 11 2022(Updated: )
A use-after-free flaw was found in net/sunrpc/xprt.c in the Remote Procedure Call (SunRPC) protocol in the Linux kernel. This flaw could allow a local attacker to crash, and this may even lead to a kernel information leak problem. References: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a</a> <a href="http://www.openwall.com/lists/oss-security/2022/04/11/4">http://www.openwall.com/lists/oss-security/2022/04/11/4</a> <a href="http://www.openwall.com/lists/oss-security/2022/04/11/3">http://www.openwall.com/lists/oss-security/2022/04/11/3</a>
Credit: cve@mitre.org
| 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 | <5.18 | 5.18 |
| Linux Kernel | >=5.1<5.4.196 | |
| Linux Kernel | >=5.5<5.10.117 | |
| Linux Kernel | >=5.11<5.15.41 | |
| Linux Kernel | >=5.16<5.16.20 | |
| Linux Kernel | >=5.17<5.17.3 | |
| netapp solidfire\, enterprise sds \& hci storage node | ||
| netapp solidfire \& hci management node | ||
| All of | ||
| netapp hci compute node firmware | ||
| netapp hci compute node | ||
| 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 | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| Debian GNU/Linux | =11.0 | |
| netapp hci compute node firmware | ||
| netapp hci compute node | ||
| 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 | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
Remedy
This flaw can be mitigated by preventing the affected SUNRPC driver (sunrpc) kernel module from loading during the boot time, ensuring the module is added to the blacklist file. ~~~ Refer: How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-28893 https://nvd.nist.gov/vuln/detail/CVE-2022-28893 http://www.openwall.com/lists/oss-security/2022/04/11/3 http://www.openwall.com/lists/oss-security/2022/04/11/4 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a
- https://bugzilla.redhat.com/show_bug.cgi?id=2074208
- 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-2022-28893
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a
- http://www.openwall.com/lists/oss-security/2022/04/11/3
- http://www.openwall.com/lists/oss-security/2022/04/11/4
- http://www.openwall.com/lists/oss-security/2022/04/11/5
- https://security.netapp.com/advisory/ntap-20220526-0002/
- https://www.debian.org/security/2022/dsa-5161
- https://launchpad.net/bugs/cve/CVE-2022-28893
- https://access.redhat.com/errata/RHSA-2024:0724
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28893
- https://nvd.nist.gov/vuln/detail/CVE-2022-28893
- https://security-tracker.debian.org/tracker/CVE-2022-28893
- https://ubuntu.com/security/CVE-2022-28893
- https://git.kernel.org/linus/f00432063db1a0db484e85193eccc6845435b80e
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2022-28893?
CVE-2022-28893 has a severity rating that could lead to local crashes and potential information leaks.
How do I fix CVE-2022-28893?
To fix CVE-2022-28893, update your Linux kernel to versions 0:4.18.0-425.3.1.rt7.213.el8, 0:4.18.0-425.3.1.el8, 0:5.14.0-162.6.1.el9_1, or higher as specified.
What systems are affected by CVE-2022-28893?
CVE-2022-28893 affects various versions of the Linux kernel across multiple distributions, including certain versions of Red Hat and Debian.
Can CVE-2022-28893 be exploited remotely?
CVE-2022-28893 is a local vulnerability and requires local access to exploit.
Who can be impacted by CVE-2022-28893?
Local attackers on affected Linux systems may exploit CVE-2022-28893 to cause crashes or information leaks.
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- canonical/netapp solidfire \& hci management node
- canonical/netapp hci compute node firmware
- canonical/netapp hci compute node
- 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
- canonical/netapp h410c firmware
- canonical/netapp h410c
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