Is CVE-2023-41335 in the CISA KEV catalog?

No. CVE-2023-41335 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-41335?

CVE-2023-41335 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2023-41335?

CVE-2023-41335 has an EPSS score of 0.36% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-41335?

Upgrade matrix-synapse on debian unstable to 1.93.0-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-41335

LOW

3.7

CVSS v3

NVD

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.

CWE-312

How to fix

Remediation Available

matrix-synapseDebian

Fixed in:1.93.0-1CVE-2023-41335

matrix-synapseUbuntu

Fixed in:0.24.0+dfsg-1ubuntu0.1~esm4USN-7444-1

Fixed in:1.11.0-1ubuntu0.1~esm2USN-7444-1

Fixed in:1.53.0-1ubuntu0.1~esm2USN-7444-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.36%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Patch2

Mailing List2

Other references2

Related Vulnerabilities

Other CWE-312 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50719	High	7.5	84%	-	Fix
CVE-2022-26148	Critical	9.8	53%	-	Fix
CVE-2020-24577	High	7.5	19%	-	Fix
CVE-2021-27140	High	7.5	19%	-	-
CVE-2021-27176	High	7.5	19%	-	-
CVE-2021-27174	High	7.5	19%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.