CVE-2021-42739

Published on: 10/20/2021 12:00:00 AM UTC

Last Modified on: 12/17/2021 01:15:00 AM UTC

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Certain versions of Fedora from Fedoraproject contain the following vulnerability:

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

  • CVE-2021-42739 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 6.7 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW HIGH NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 4.6 - MEDIUM

Access
Vector
Access
Complexity
Authentication
LOCAL LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
[SECURITY] Fedora 33 Update: kernel-5.14.17-101.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-8364530ebf
CVE-2021-42739 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security security.netapp.com
text/html
URL Logo CONFIRM security.netapp.com/advisory/ntap-20211118-0001/
[SECURITY] Fedora 35 Update: kernel-5.14.17-301.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-fdef34e26f
oss-sec: Linux kernel: a heap buffer overflow in firedtv driver seclists.org
text/html
URL Logo MISC seclists.org/oss-sec/2021/q2/46
kernel/git/torvalds/linux.git - Linux kernel source tree git.kernel.org
text/html
URL Logo MISC git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
[SECURITY] [DLA 2843-1] linux security update lists.debian.org
text/html
URL Logo MLIST [debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update
[SECURITY] Fedora 34 Update: kernel-5.14.17-201.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-7de33b7016

Related QID Numbers

  • 178943 Debian Security Update for linux (DLA 2843-1)
  • 198589 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5165-1)
  • 198616 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5207-1)
  • 239989 Red Hat Update for kernel-rt (RHSA-2022:0065)
  • 239997 Red Hat Update for kernel (RHSA-2022:0063)
  • 257142 CentOS Security Update for kernel (CESA-2022:0063)
  • 257144 CentOS Security Update for kernel (CESA-2022:0063)
  • 282057 Fedora Security Update for kernel (FEDORA-2021-8364530ebf)
  • 282058 Fedora Security Update for kernel (FEDORA-2021-7de33b7016)
  • 282160 Fedora Security Update for kernel (FEDORA-2021-fdef34e26f)
  • 671219 EulerOS Security Update for kernel (EulerOS-SA-2022-1030)
  • 671225 EulerOS Security Update for kernel (EulerOS-SA-2022-1010)
  • 751336 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1460-1)
  • 751342 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3641-1)
  • 751346 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3655-1)
  • 751349 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1477-1)
  • 751353 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3675-1)
  • 751381 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3748-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751451 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3935-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
  • 900425 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6103)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
FedoraprojectFedora33AllAllAll
Operating
System
FedoraprojectFedora34AllAllAll
Operating
System
FedoraprojectFedora35AllAllAll
Operating
System
LinuxLinux KernelAllAllAllAll
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*:
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-42739 : The firewire subsystem in the #Linux #kernel through 5.14.13 has a buffer overflow related to driv… twitter.com/i/web/status/1… 2021-10-20 07:04:36
Twitter Icon @omokazuki SIOSセキュリティブログを更新しました。 Linux Kernelの脆弱性(Medium/Moderate: CVE-2021-42739) #sios_tech #security #vulnerability… twitter.com/i/web/status/1… 2021-10-21 18:04:00
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