CVE-2020-25211

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.

CVSS v3.0 6.0 MEDIUM
CVSS v2.0 3.6 LOW

6.0^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

3.6^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:P/A:P

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6	Exploit Mailing List Patch Vendor Advisory
https://twitter.com/grsecurity/status/1303646421158109185	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OLDYVOM4OS55HA45Y3UEVLDHYGFXPZUX/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BL2O4JAMPJG4YMLLJ7JFDHDJRXN4RKTC/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0001/	Third Party Advisory
https://www.debian.org/security/2020/dsa-4774	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:32:::::::*

Information

Published : 2020-09-09 16:15

Updated : 2020-11-02 21:15

NVD link : CVE-2020-25211

Mitre link : CVE-2020-25211

JSON object : View

Products Affected

fedoraproject

fedora

linux

linux_kernel

debian

debian_linux

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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