CVE-2021-47257: net: ieee802154: fix null deref in parse dev addr
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fix null deref in parse dev addr Fix a logic error that could result in a null deref if the user sets the mode incorrectly for the given addr type.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.9.274 | 4.9.274 |
| redhat/kernel | <4.14.238 | 4.14.238 |
| redhat/kernel | <4.19.196 | 4.19.196 |
| redhat/kernel | <5.4.127 | 5.4.127 |
| redhat/kernel | <5.10.45 | 5.10.45 |
| redhat/kernel | <5.12.12 | 5.12.12 |
| redhat/kernel | <5.13 | 5.13 |
| Linux Kernel | <4.9.274 | |
| Linux Kernel | >=4.10<4.14.238 | |
| Linux Kernel | >=4.15<4.19.196 | |
| Linux Kernel | >=4.20<5.4.127 | |
| Linux Kernel | >=5.5<5.10.45 | |
| Linux Kernel | >=5.11<5.12.12 | |
| Linux Kernel | =5.13-rc1 | |
| Linux Kernel | =5.13-rc2 | |
| Linux Kernel | =5.13-rc3 | |
| Linux Kernel | =5.13-rc4 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-47257
- https://lore.kernel.org/linux-cve-announce/2024052146-CVE-2021-47257-1d1c@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:5102
- https://access.redhat.com/errata/RHSA-2024:5101
- https://bugzilla.redhat.com/show_bug.cgi?id=2282553
- https://git.kernel.org/stable/c/1f95741981c899c4724647291fec5faa3c777185
- https://git.kernel.org/stable/c/c6998ccfefa652bac3f9b236821e392af43efa1e
- https://git.kernel.org/stable/c/5f728ec65485625e30f46e5b4917ff023ad29ea0
- https://git.kernel.org/stable/c/d0f47648b87b6d5f204cb7f3cbce6d36dab85a67
- https://git.kernel.org/stable/c/c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627
- https://git.kernel.org/stable/c/fdd51e34f45311ab6e48d2147cbc2904731b9993
- https://git.kernel.org/stable/c/9fdd04918a452980631ecc499317881c1d120b70
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-47257?
CVE-2021-47257 has been classified as a medium severity vulnerability due to its potential to cause a null pointer dereference.
How do I fix CVE-2021-47257?
To fix CVE-2021-47257, update the Linux kernel to versions 4.9.274, 4.14.238, 4.19.196, 5.4.127, 5.10.45, 5.12.12, or 5.13.
What versions of the Linux kernel are affected by CVE-2021-47257?
CVE-2021-47257 affects multiple versions of the Linux kernel up to 5.13.
Which Linux distributions are impacted by CVE-2021-47257?
CVE-2021-47257 primarily affects systems running vulnerable versions of the Linux kernel from Red Hat distributions.
Can CVE-2021-47257 lead to system crashes?
Yes, CVE-2021-47257 can lead to system crashes due to null pointer dereference errors when the user sets the mode incorrectly.
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