CVE-2023-41335

LOW EPSS 28.1%
Published Sep 27, 20232y ago · Modified Jun 17, 20262w ago
3.7 CVSS 3.1
Low
Find Similar
Published Sep 27, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

CVSS Details

Base Score
3.7
Exploitability
1.2
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
28.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-312

Affected Products 3

VendorProductVersionRange
matrixsynapse*≥1.66.0  –  <1.93.0
fedoraprojectfedora37any
fedoraprojectfedora38any

References 6

  • github.com https://github.com/matrix-org/synapse/pull/16272
    Patch
  • github.com https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
    PatchVendor Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4/
    Mailing ListRelease Notes
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/
    Mailing ListRelease Notes
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/
  • security.gentoo.org https://security.gentoo.org/glsa/202401-12

Remediation

  • github.com https://github.com/matrix-org/synapse/pull/16272
    Patch
  • github.com https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
    PatchVendor Advisory