6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
58.7%
Debian LTS Advisory DLA-2665-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
May 23, 2021 https://wiki.debian.org/LTS
Package : ring
Version : 20161221.2.7bd7d91~dfsg1-1+deb9u1
CVE ID : CVE-2021-21375
An issue has been found in ring, a secure and distributed voice, video and
chat platform. Actually the embedded copy of pjproject is affected by this
CVE.
Due to bad handling of two consecutive crafted answers to an INVITE, the
attacker is able to crash the server resulting in a denial of service.
For Debian 9 stretch, this problem has been fixed in version
20161221.2.7bd7d91~dfsg1-1+deb9u1.
We recommend that you upgrade your ring packages.
For the detailed security status of ring please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/ring
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | all | ring | < 20161221.2.7bd7d91~dfsg1-1+deb9u1 | ring_20161221.2.7bd7d91~dfsg1-1+deb9u1_all.deb |
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
58.7%