CVE-2021-47260
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 4.4.273
- Linux Kernel < 4.9.273
- Linux Kernel < 4.14.237
- Linux Kernel < 4.19.195
- Linux Kernel < 5.4.126
- Linux Kernel < 5.10.44
- Linux Kernel < 5.12.11
- Linux Kernel 5.13
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-47260.md and follow it. Check whether this project is affected by CVE-2021-47260. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b
- https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0
- https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7
- https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502
- https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1
- https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee
- https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00
- https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106
- https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b
- https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0
References
- https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b
- https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0
- https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7
- https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502
- https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1
- https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee
- https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00
- https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106
- https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b
- https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0
- https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7
- https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502
- https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1
- https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee
- https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00
- https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106