Ubuntu.comUB:CVE-2018-10657CVE-2018-10657
CVSS2
Attack Vector
NETWORK
Attack 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
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
46.6%
Matrix Synapse before 0.28.1 is prone to a denial of service flaw where
malicious events injected with depth = 2^63 - 1 render rooms unusable,
related to federation/federation_base.py and handlers/message.py, as
exploited in the wild in April 2018.
Notes
| Author | Note |
|---|---|
| leosilva | code is quite different in bionic and artful versus patch. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | matrix-synapse | < 0.24.0+dfsg-1ubuntu0.1~esm1 | UNKNOWN |
| ubuntu | 18.10 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 19.04 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 19.10 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 20.04 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 20.10 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 21.04 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 21.10 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 22.04 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
| ubuntu | 22.10 | noarch | matrix-synapse | < 0.28.1+dfsg-1 | UNKNOWN |
References
docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI/edit#heading=h.fj95ykuss7s1
github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb
launchpad.net/bugs/cve/CVE-2018-10657
matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/
nvd.nist.gov/vuln/detail/CVE-2018-10657
security-tracker.debian.org/tracker/CVE-2018-10657
ubuntu.com/security/notices/USN-6076-1
www.cve.org/CVERecord?id=CVE-2018-10657
Related
CVSS2
Attack Vector
NETWORK
Attack 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
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
46.6%