Medium severity · published Mar 2, 2022
CVE-2021-3772
A flaw was found in the Linux SCTP stack
6.5
CVSS
1.2%
EPSS
No
On KEV
Description
A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.15.0 · 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
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
ES
E-series Santricity OS Controller · Netapp
11.0; 11.0.0; 11.20; 11.25; 11.30; 11.30.5r3; +12 more · source: NVD
EL
Enterprise Linux · Redhat
8.0 · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H610c Firmware · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3772
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3772
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2000694
Mailing List
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df
Patch
https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df
Mailing List
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221007-0001/
Patch
https://ubuntu.com/security/CVE-2021-3772
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