CVE - CVE-2021-47109

CVE-ID
CVE-2021-47109	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: neighbour: allow NUD_NOARP entries to be forced GCed IFF_POINTOPOINT interfaces use NUD_NOARP entries for IPv6. It's possible to fill up the neighbour table with enough entries that it will overflow for valid connections after that. This behaviour is more prevalent after commit 58956317c8de ("neighbor: Improve garbage collection") is applied, as it prevents removal from entries that are not NUD_FAILED, unless they are more than 5s old.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/7a6b1ab7475fd6478eeaf5c9d1163e7a18125c8f URL:https://git.kernel.org/stable/c/7a6b1ab7475fd6478eeaf5c9d1163e7a18125c8f MISC:https://git.kernel.org/stable/c/d17d47da59f726dc4c87caebda3a50333d7e2fd3 URL:https://git.kernel.org/stable/c/d17d47da59f726dc4c87caebda3a50333d7e2fd3 MISC:https://git.kernel.org/stable/c/d99029e6aab62aef0a0251588b2867e77e83b137 URL:https://git.kernel.org/stable/c/d99029e6aab62aef0a0251588b2867e77e83b137 MISC:https://git.kernel.org/stable/c/ddf088d7aaaaacfc836104f2e632b29b1d383cfc URL:https://git.kernel.org/stable/c/ddf088d7aaaaacfc836104f2e632b29b1d383cfc
Assigning CNA
kernel.org
Date Record Created
20240304	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240304)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)