7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
38.6%
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.
Author | Note |
---|---|
sbeattie | complementary to CVE-2021-45486 |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-156.163 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-84.94 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-219.252) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1111.118 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1056.59 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1099.104) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1135.149) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.11 | < 5.11.0-1019.20~20.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1056.59~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1111.118~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
arxiv.org/pdf/2112.09604.pdf
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45485
git.kernel.org/linus/62f20e068ccc50d6ab66fdb72ba90da2b9418c99 (5.14-rc1)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99
launchpad.net/bugs/cve/CVE-2021-45485
nvd.nist.gov/vuln/detail/CVE-2021-45485
security-tracker.debian.org/tracker/CVE-2021-45485
ubuntu.com/security/notices/USN-5299-1
ubuntu.com/security/notices/USN-5343-1
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
38.6%