Out-of-bounds Read in Linux Kernel
CVE-2021-3743
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.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (50.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Exploit, Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Patch, x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (Patch, x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3743?
- CVE-2021-3743 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2022-03-04.
- How severe is CVE-2021-3743?
- High severity. CVSS v3 base score is 7.1 out of 10.