CVE-2021-3743

Public Exploit

Description

An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol in the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a Kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1997961 issue tracking third party advisory patch
https://lists.openwall.net/netdev/2021/08/17/124 mailing list exploit third party advisory
https://www.openwall.com/lists/oss-security/2021/08/27/2 mailing list patch exploit third party advisory
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e78c597c3eb patch vendor advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e78c597c3ebfd0cb329aa09a838734147e4f117 patch vendor advisory
https://github.com/torvalds/linux/commit/7e78c597c3ebfd0cb329aa09a838734147e4f117 third party advisory patch
https://www.oracle.com/security-alerts/cpujul2022.html third party advisory patch
https://security.netapp.com/advisory/ntap-20220407-0007/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3743?
CVE-2021-3743 has been scored as a high severity vulnerability.
How to fix CVE-2021-3743?
To fix CVE-2021-3743, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3743 being actively exploited in the wild?
It is possible that CVE-2021-3743 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3743?
CVE-2021-3743 affects n/a Kernel.
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