High severity · published Dec 25, 2021
CVE-2021-45485
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…
7.5
CVSS
3.8%
EPSS
No
On KEV
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:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 4.4.276; 4.5 before 4.9.276; 4.10 before 4.14.240; 4.15 before 4.19.198; 4.20 before 5.4.133; 5.5 before 5.10.51; +2 more · source: NVD
AA
Aff A400 Firmware · Netapp
All versions, or not specified · source: NVD
AF
All Flash Fabric-attached Storage 8300 Firmware · Netapp
All versions, or not specified · source: NVD
AF
All Flash Fabric-attached Storage 8700 Firmware · Netapp
All versions, or not specified · source: NVD
BF
Brocade Fabric Operating System Firmware · Netapp
All versions, or not specified · source: NVD
CC
Communications Cloud Native Core Binding Support Function · Oracle
22.1.3 · source: NVD
CC
Communications Cloud Native Core Network Exposure Function · Oracle
22.1.1 · source: NVD
CC
Communications Cloud Native Core Policy · Oracle
22.2.0 · source: NVD
ES
E-series Santricity OS Controller · Netapp
All versions, or not specified · source: NVD
FS
Fabric-attached Storage 8300 Firmware · Netapp
All versions, or not specified · source: NVD
FS
Fabric-attached Storage 8700 Firmware · Netapp
All versions, or not specified · source: NVD
FS
Fabric-attached Storage A400 Firmware · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45485
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45485
Technical Description
https://arxiv.org/pdf/2112.09604.pdf
Release Notes
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220121-0001/
Patch
https://www.oracle.com/security-alerts/cpujul2022.html
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