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githubGitHub Advisory DatabaseGHSA-5CHR-WJW5-3GQ4
HistoryOct 10, 2023 - 9:27 p.m.

matrix-synapse vulnerable to denial of service due to malicious server ACL events

2023-10-1021:27:53
CWE-770
GitHub Advisory Database
github.com
26
matrix-synapse
denial of service
malicious server acl
upgrade
synapse 1.94.0
workaround

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

53.3%

JSON

Impact

A malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service.

Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected.

Patches

Server administrators are advised to upgrade to Synapse 1.94.0 or later.

Workarounds

Rooms with malicious server ACL events can be purged and blocked using the admin API.

Affected configurations

Vulners
Node
matrixsynapseRange<1.94.0
VendorProductVersionCPE
matrixsynapse*cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*

Related

osv 4
fedora 3
prion 1
openvas 3
redhatcve 1
ubuntucve 1
cvelist 1
nvd 1
debiancve 1
nessus 4
cve 1
alpinelinux 1
veracode 1
gentoo 1
osv
osv
matrix-synapse vulnerable to denial of service due to malicious server ACL events
2023-10-10 21:27:53
PYSEC-2023-199
2023-10-10 18:15:00
matrix-synapse-1.94.0-2.1 on GA media
2024-06-15 00:00:00
fedora
fedora
[SECURITY] Fedora 38 Update: matrix-synapse-1.94.0-2.fc38
2023-10-20 00:42:39
[SECURITY] Fedora 37 Update: matrix-synapse-1.80.0-7.fc37
2023-10-24 01:13:10
[SECURITY] Fedora 39 Update: matrix-synapse-1.94.0-2.fc39
2023-11-03 18:56:49
prion
prion
Design/Logic Flaw
2023-10-10 18:15:00
openvas
openvas
Fedora: Security Advisory for matrix-synapse (FEDORA-2023-c3c8cc5f8b)
2023-10-20 00:00:00
Fedora: Security Advisory for matrix-synapse (FEDORA-2023-954c2ec5bd)
2023-10-25 00:00:00
Fedora: Security Advisory (FEDORA-2023-4d4c73a8f0)
2023-11-05 00:00:00
redhatcve
redhatcve
CVE-2023-45129
2023-10-10 21:42:26
ubuntucve
ubuntucve
CVE-2023-45129
2023-10-10 00:00:00
cvelist
cvelist
CVE-2023-45129 matrix-synapse vulnerable to denial of service due to malicious server ACL events
2023-10-10 17:17:11
nvd
nvd
CVE-2023-45129
2023-10-10 18:15:19
debiancve
debiancve
CVE-2023-45129
2023-10-10 18:15:19
nessus
nessus
Fedora 38 : matrix-synapse (2023-c3c8cc5f8b)
2023-10-20 00:00:00
Fedora 37 : matrix-synapse (2023-954c2ec5bd)
2023-10-24 00:00:00
Fedora 39 : matrix-synapse (2023-4d4c73a8f0)
2023-11-07 00:00:00
cve
cve
CVE-2023-45129
2023-10-10 18:15:19
alpinelinux
alpinelinux
CVE-2023-45129
2023-10-10 18:15:19
veracode
veracode
Denial Of Service (DoS)
2023-10-12 13:44:00
gentoo
gentoo
Synapse: Multiple Vulnerabilities
2024-01-07 00:00:00

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

53.3%

JSON
Related for GHSA-5CHR-WJW5-3GQ4
osv4fedora3prion1openvas3redhatcve1ubuntucve1cvelist1nvd1debiancve1nessus4cve1alpinelinux1veracode1gentoo1