CVE-2021-3760: Use After Free
First published: Thu Sep 02 2021(Updated: )
A flaw was found in the Linux kernel in NFC stack (protocol) that is UAF vulnerability of ndev->rf_conn_info object.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel 5.14.15 | <100. | 100. |
| redhat/kernel 5.14.15 | <200. | 200. |
| redhat/kernel 5.14.15 | <300. | 300. |
| Linux Kernel | >=4.0<4.4.290 | |
| Linux Kernel | >=4.5<4.9.288 | |
| Linux Kernel | >=4.10<4.14.253 | |
| Linux Kernel | >=4.15<4.19.214 | |
| Linux Kernel | >=4.20<5.4.156 | |
| Linux Kernel | >=5.5<5.10.76 | |
| Linux Kernel | >=5.11<5.14.15 | |
| Red Hat Fedora | =34 | |
| Debian Linux | =9.0 | |
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H300S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H500S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H700S | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H300E | ||
| NetApp Baseboard Management Controller H500E Firmware | ||
| NetApp Baseboard Management Controller H500E Firmware | ||
| NetApp Baseboard Management Controller H700E Firmware | ||
| NetApp Baseboard Management Controller H700E Firmware | ||
| NetApp Baseboard Management Controller Firmware | ||
| NetApp Baseboard Management Controller H410S | ||
| NetApp Baseboard Management Controller H410C | ||
| NetApp Baseboard Management Controller H410C Firmware | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-3760 https://nvd.nist.gov/vuln/detail/CVE-2021-3760
- https://bugzilla.redhat.com/show_bug.cgi?id=2000585
- https://access.redhat.com/security/cve/cve-2021-3760
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20220318-0007/
- https://www.debian.org/security/2022/dsa-5096
- https://launchpad.net/bugs/cve/CVE-2021-3760
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2017943
- https://www.openwall.com/lists/oss-security/2021/10/26/2
- https://git.kernel.org/linus/1b1499a817c90fd1ce9453a2c98d2a01cca0e775
- https://security-tracker.debian.org/tracker/CVE-2021-3760
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3760
- https://nvd.nist.gov/vuln/detail/CVE-2021-3760
- https://ubuntu.com/security/CVE-2021-3760
Frequently Asked Questions
What is the severity of CVE-2021-3760?
CVE-2021-3760 is classified as a use-after-free vulnerability in the Linux kernel's NFC stack, posing risks to confidentiality, integrity, and system availability.
How do I fix CVE-2021-3760?
To fix CVE-2021-3760, upgrade to the latest patched versions of the Linux kernel or apply available security patches from your distribution.
Which Linux kernel versions are affected by CVE-2021-3760?
CVE-2021-3760 affects various versions of the Linux kernel, including multiple distributions with versions less than 5.14.15 and with specific Debian versions.
What types of systems are impacted by CVE-2021-3760?
CVE-2021-3760 impacts systems running vulnerable versions of the Linux kernel, particularly those utilizing NFC stack functionality.
Is there a workaround for CVE-2021-3760?
While upgrading is the recommended solution for CVE-2021-3760, temporary workarounds may include disabling NFC functionality if it is not needed.
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