CVE-2022-1199: Use After Free
A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.
Other sources
There are null-ptr-deref vulnerability and use-after-free vulnerability that allow attacker to crash linux kernel by simulating Amateur Radio from user-space of linux.
Upstream fix:
https://github.com/torvalds/linux/commit/4e0f718daf97d47cf7dec122da1be970f145c809 https://github.com/torvalds/linux/commit/71171ac8eb34ce7fe6b3267dce27c313ab3cb3ac https://github.com/torvalds/linux/commit/7ec02f5ac8a5be5a3f20611731243dc5e1d9ba10
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/kernel vto a version that resolves this vulnerability.Fixed in 5.18 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
Event History
Frequently Asked Questions
What is the severity of CVE-2022-1199?
CVE-2022-1199 is considered a critical vulnerability due to its potential to crash the Linux kernel remotely.
How do I fix CVE-2022-1199?
To resolve CVE-2022-1199, update your Linux kernel to version 5.18 or apply the available patches for affected distributions.
What causes CVE-2022-1199?
CVE-2022-1199 is caused by a flaw in the Linux kernel that leads to a null pointer dereference and a use-after-free condition.
Which systems are affected by CVE-2022-1199?
CVE-2022-1199 affects various versions of the Linux kernel, particularly versions up to 5.17.14 and version 5.18.
Can CVE-2022-1199 be exploited remotely?
Yes, CVE-2022-1199 can potentially be exploited remotely by an attacker simulating amateur radio communication from user space.