medium
5.7
CWE
287
Advisory Published
CVE Published
CVE Published
Updated

CVE-2021-0129

First published: Wed May 26 2021(Updated: )

A flaw was found in the Linux kernel. Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access. The highest threat from this vulnerability is to data confidentiality and integrity.

Credit: secure@intel.com

Affected SoftwareAffected VersionHow to fix
debian/bluez<=5.55-3<=5.50-1.2<=5.50-1.2~deb10u1
5.58-1~exp0
5.55-3.1
5.50-1.2~deb10u2
redhat/kernel-rt<0:4.18.0-348.rt7.130.el8
0:4.18.0-348.rt7.130.el8
redhat/kernel<0:4.18.0-348.el8
0:4.18.0-348.el8
redhat/kernel<5.13
5.13
All of
SUSE BlueZ<5.57
Any of
Linux Kernel>=2.6.12<4.4.270
Linux Kernel>=4.9<4.9.270
Linux Kernel>=4.14<4.14.234
Linux Kernel>=4.19<4.19.192
Linux Kernel>=5.4<5.4.122
Linux Kernel>=5.10<5.10.40
Linux Kernel>=5.12<5.12.7
Linux Kernel=5.13-rc1
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Debian=9.0
SUSE BlueZ<5.57
Linux Kernel>=2.6.12<4.4.270
Linux Kernel>=4.9<4.9.270
Linux Kernel>=4.14<4.14.234
Linux Kernel>=4.19<4.19.192
Linux Kernel>=5.4<5.4.122
Linux Kernel>=5.10<5.10.40
Linux Kernel>=5.12<5.12.7
Linux Kernel=5.13-rc1
debian/bluez
5.55-3.1+deb11u1
5.55-3.1+deb11u2
5.66-1+deb12u2
5.66-1+deb12u1
5.79-1
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-0129?

    The severity of CVE-2021-0129 is high, as it can potentially allow information disclosure and threat to data confidentiality and integrity.

  • How do I fix CVE-2021-0129?

    To fix CVE-2021-0129, update BlueZ to version 5.58 or later, or apply the necessary kernel patches if you are using a vulnerable version.

  • Which versions of BlueZ are affected by CVE-2021-0129?

    BlueZ versions up to 5.57 are affected by CVE-2021-0129.

  • What platforms are vulnerable to CVE-2021-0129?

    CVE-2021-0129 affects Debian and Red Hat-based distributions running vulnerable versions of BlueZ and the Linux kernel.

  • Can CVE-2021-0129 be exploited remotely?

    CVE-2021-0129 requires an authenticated user with adjacent access to exploit the vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203