CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
EPSS
Percentile
5.1%
In the Linux kernel through 5.8.7, local attackers able to inject conntrack
netlink configuration could overflow a local buffer, causing crashes or
triggering use of incorrect protocol numbers in
ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka
CID-1cc5ef91d2ff.
Author | Note |
---|---|
sbeattie | fixed in 5.4 somewhere; proposed fix only going to stable trees |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-126.129 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-56.62 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-197.229 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1088.93 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1030.31 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1082.86 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1118.132 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1030.31~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1088.93~16.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1032.33 | UNKNOWN |
git.kernel.org/linus/1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6
launchpad.net/bugs/cve/CVE-2020-25211
lore.kernel.org/stable/[email protected]/
nvd.nist.gov/vuln/detail/CVE-2020-25211
security-tracker.debian.org/tracker/CVE-2020-25211
twitter.com/grsecurity/status/1303646421158109185
ubuntu.com/security/notices/USN-4657-1
ubuntu.com/security/notices/USN-4658-1
ubuntu.com/security/notices/USN-4660-1
www.cve.org/CVERecord?id=CVE-2020-25211
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
EPSS
Percentile
5.1%