CVE-2021-47017

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47017
In the Linux kernel, the following vulnerability has been resolved: ath10k: Fix a use after free in ath10k_htc_send_bundle In ath10k_htc_send_bundle, the bundle_skb could be freed by dev_kfree_skb_any(bundle_skb). But the bundle_skb is used later by bundle_skb->len. As skb_len = bundle_skb->len, my patch replaces bundle_skb->len to skb_len after the bundle_skb was freed.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b Patch
https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 Patch
https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 Patch
https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 Patch
https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b Patch
https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 Patch
https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 Patch
https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

09 Dec 2024, 17:59

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b - () https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b - Patch
References () https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 - () https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 - Patch
References () https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 - () https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 - Patch
References () https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 - () https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 - Patch
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

21 Nov 2024, 06:35

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ath10k: corrige un use after free en ath10k_htc_send_bundle En ath10k_htc_send_bundle, el paquete_skb podría ser liberado por dev_kfree_skb_any(bundle_skb). Pero el paquete_skb lo utiliza más tarde el paquete_skb->len. Como skb_len = bundle_skb->len, mi parche reemplaza bundle_skb->len por skb_len después de que se liberó el paquete_skb.
References () https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b - () https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b -
References () https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 - () https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 -
References () https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 - () https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 -
References () https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 - () https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 -

28 Feb 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-28 09:15

Updated : 2024-12-09 17:59

NVD link : CVE-2021-47017

Mitre link : CVE-2021-47017

CVE.ORG link : CVE-2021-47017

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free