Alpine Linux Development TeamALPINE:CVE-2020-26890CVE-2020-26890
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.007 Low
EPSS
Percentile
79.6%
Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into the room’s state, the impact is long-lasting and is not fixed by an upgrade to a newer version, requiring the event to be manually redacted instead. Since events are replicated to servers of other room members, the impact is not constrained to the server of the event sender.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Alpine | edge-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.13-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.14-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.15-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.16-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.17-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.18-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
| Alpine | 3.19-community | noarch | synapse | < 1.20.0-r0 | UNKNOWN |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.007 Low
EPSS
Percentile
79.6%