|Summary:||CVE-2021-38202 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|
|Product:||[Other] Security Response||Reporter:||Guilherme de Almeida Suckevicz <gsuckevi>|
|Component:||vulnerability||Assignee:||Red Hat Product Security <security-response-team>|
|Status:||CLOSED NOTABUG||QA Contact:|
|Version:||unspecified||CC:||acaringi, adscvr, airlied, alciregi, bhu, blc, brdeoliv, bskeggs, chwhite, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jeremy, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rkeshri, rvrbovsk, steved, swood, walters, williams|
|Fixed In Version:||kernel 5.14 rc1||Doc Type:||If docs needed, set a value|
A flaw was found in Linux kernel. A remote attacker could cause a denial of service attack by sending NFS traffic when trace event framework is being used for nfsd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
|Last Closed:||2021-08-17 13:28:14 UTC||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
|Bug Depends On:||1992742|
Description Guilherme de Almeida Suckevicz 2021-08-11 17:05:22 UTC
A flaw was found in the Linux kernel. A remote attacker could cause a denial of service attack by sending NFS traffic when trace event framework is being used for nfsd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw may allow a remote attacker 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. Reference and upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b08cf62b1239a4322427d677ea9363f0ab677c6
Comment 1 Guilherme de Almeida Suckevicz 2021-08-11 17:05:50 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1992742]
Comment 3 Justin M. Forbes 2021-08-12 13:19:20 UTC
This was fixed for Fedora with the 5.13.4 stable kernel updates.
Comment 4 Rohit Keshri 2021-08-15 20:05:18 UTC
There was no shipped RHEL kernel version that was seen affected by this problem.
Comment 7 Product Security DevOps Team 2021-08-17 13:28:14 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2021-38202