CVE-2021-3501

CWE-787 — Out-of-bounds Write8 documents8 sources
Severity
7.1HIGH
EPSS
0.0%
top 87.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Linux Linux KernelFedoraproject FedoraRedhat Enterprise Linux+6 more
Timeline
PublishedMay 6
Latest updateMay 24

Description

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages5 packages

▶NVDlinux/linux_kernel< 5.12
▶Debianlinux< 5.10.38-1+3
▶CVEListV5kernelLinux kernel 5.12

Also affects: Enterprise Linux 8.0, 8, 8.4, Fedora 33

Patches

Patch: bugzilla.redhat.com ↗Patch: git.kernel.org ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-hvwc-6fg8-r6p5: A flaw was found in the Linux kernel in versions before 5↗2022-05-24
▶
OSV
CVE-2021-3501: A flaw was found in the Linux kernel in versions before 5↗2021-05-06
▶
CVEList
CVE-2021-3501: A flaw was found in the Linux kernel in versions before 5↗2021-05-05
▶

📋Vendor Advisories

4
Ubuntu
Linux kernel (OEM) vulnerabilities↗2021-06-03
▶
Microsoft
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata in the KVM API is mapped to an array index which can be updated by a user process at anytime which could lead ↗2021-05-11
▶
Red Hat
kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run↗2021-04-13
▶
Debian
CVE-2021-3501: linux - A flaw was found in the Linux kernel in versions before 5.12. The value of inter...↗2021
▶
CVE-2021-3501 (HIGH CVSS 7.1) | A flaw was found in the Linux kerne | cvebase.io