CVE-2021-45485 — Use of a Broken or Risky Cryptographic Algorithm in Kernel
Severity
7.5HIGHNVD
OSV7.8OSV5.4
EPSS
0.9%
top 24.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 25
Latest updateJan 28
Description
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6
Affected Packages13 packages
Patches
🔴Vulnerability Details
4📋Vendor Advisories
5Microsoft▶
In the IPv6 implementation in the Linux kernel before 5.13.3 net/ipv6/output_core.c has an information leak because of certain use of a hash table which although big doesn't properly consider that IPv↗2021-12-14
Debian▶
CVE-2021-45485: linux - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_co...↗2021