CVE-2021-47260
"Linux NFS NULL Dereference Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential NULL dereference in nfs_get_client() None of the callers are expecting NULL returns from nfs_get_client() so this code will lead to an Oops. It's better to return an error pointer. I expect that this is dead code so hopefully no one is affected.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 24, 2024, 4:35 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47260.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47260 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47260 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Dec. 24, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.17 up to (excluding) 4.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.237 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.195 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.126 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.11 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b No Types Assigned https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b Patch Changed Reference Type https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b No Types Assigned https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b Patch Changed Reference Type https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 No Types Assigned https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 Patch Changed Reference Type https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 No Types Assigned https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 Patch Changed Reference Type https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 No Types Assigned https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 Patch Changed Reference Type https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 No Types Assigned https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 Patch Changed Reference Type https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 No Types Assigned https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 Patch Changed Reference Type https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 No Types Assigned https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 Patch Changed Reference Type https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 No Types Assigned https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 Patch Changed Reference Type https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 No Types Assigned https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 Patch Changed Reference Type https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee No Types Assigned https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee Patch Changed Reference Type https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee No Types Assigned https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee Patch Changed Reference Type https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 No Types Assigned https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 Patch Changed Reference Type https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 No Types Assigned https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 Patch Changed Reference Type https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 No Types Assigned https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 Patch Changed Reference Type https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 No Types Assigned https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b Added Reference https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 Added Reference https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 Added Reference https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 Added Reference https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 Added Reference https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee Added Reference https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 Added Reference https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential NULL dereference in nfs_get_client() None of the callers are expecting NULL returns from nfs_get_client() so this code will lead to an Oops. It's better to return an error pointer. I expect that this is dead code so hopefully no one is affected. Added Reference kernel.org https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47260 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47260
weaknesses.