CVE-2021-38202 — Out-of-bounds Read in Kernel

CWE-125 — Out-of-bounds Read8 documents7 sources
Severity
7.5HIGHNVD
OSV5.5
EPSS
1.1%
top 22.37%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxMsrc Cbl2 Kernel 5.10.78.1-1 ON CBL Mariner 2.0+1 more
Timeline
PublishedAug 8
Latest updateMay 24

Description

fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel< 5.13.4
▶debiandebian/linux

Patches

Patch: cdn.kernel.org ↗Patch: github.com ↗Patch: cdn.kernel.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-j8f3-cxf7-rj22: fs/nfsd/trace↗2022-05-24
▶
OSV
linux-oem-5.13 vulnerabilities↗2021-09-29
▶
OSV
CVE-2021-38202: fs/nfsd/trace↗2021-08-08
▶

📋Vendor Advisories

4
Ubuntu
Linux kernel (OEM) vulnerabilities↗2021-09-29
▶
Microsoft
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is bein↗2021-08-10
▶
Red Hat
kernel: out-of-bounds read in TRACE_EVENT() in fs/nfsd/trace.h by sending NFS traffic when the trace event framework is being used for nfsd↗2021-07-06
▶
Debian
CVE-2021-38202: linux - fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers t...↗2021
▶
CVE-2021-38202 — Out-of-bounds Read in Linux Kernel | cvebase