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CVE-2024-34063

LOW
Published 2024-05-03T09:52:28.758Z
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CVSS Score

V3.1
2.5
/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.021
Higher than 2.1% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
NONE
Availability
NONE

Description

vodozemac is an implementation of Olm and Megolm in pure Rust. Versions 0.5.0 and 0.5.1 of vodozemac have degraded secret zeroization capabilities, due to changes in third-party cryptographic dependencies (the Dalek crates), which moved secret zeroization capabilities behind a feature flag and defaulted this feature to off. The degraded zeroization capabilities could result in the production of more memory copies of encryption secrets and secrets could linger in memory longer than necessary. This marginally increases the risk of sensitive data exposure. This issue has been addressed in version 0.6.0 and users are advised to upgrade. There are no known workarounds for this vulnerability.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

matrix-org

vodozemac

Affected Versions:

>= 0.5.0, < 0.6.0
matrix-org

vodozemac

Affected Versions:

0.5.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed LOW

vodozemac has degraded secret zeroization capabilities

GHSA-c3hm-hxwf-g5c6

Advisory Details

Versions 0.5.0 and 0.5.1 of vodozemac have degraded secret zeroization capabilities, due to changes in third-party cryptographic dependencies (the Dalek crates), which moved secret zeroization capabilities behind a feature flag while vodozemac disabled the default feature set. ### Impact The degraded zeroization capabilities could result in the production of more memory copies of encryption secrets and secrets could linger in memory longer than necessary. This marginally increases the risk of sensitive data exposure. Overall, we consider the impact of this issue to be low. Although cryptographic best practices recommend the clearing of sensitive information from memory once it's no longer needed, the inherent limitations of Rust regarding absolute zeroization reduce the practical severity of this lapse. ### Patches The patch is in commit https://github.com/matrix-org/vodozemac/pull/130/commits/297548cad4016ce448c4b5007c54db7ee39489d9. ### Workarounds None. ### For more information If you have any questions or comments about this advisory please email us at [security at matrix.org](mailto:[email protected]).

Affected Packages

crates.io vodozemac
ECOSYSTEM: ≥0.5.0 <0.6.0

CVSS Scoring

CVSS Score

2.5

CVSS Vector

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

References

WEB https://github.com/matrix-org/vodozemac/security/advisories/GHSA-c3hm-hxwf-g5c6
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-34063
WEB https://github.com/matrix-org/vodozemac/commit/297548cad4016ce448c4b5007c54db7ee39489d9
PACKAGE https://github.com/matrix-org/vodozemac
WEB https://rustsec.org/advisories/RUSTSEC-2024-0342.html

Advisory provided by GitHub Security Advisory Database. Published: May 3, 2024, Modified: May 20, 2024

References

https://github.com/matrix-org/vodozemac/security/advisories/GHSA-c3hm-hxwf-g5c6
https://github.com/matrix-org/vodozemac/commit/297548cad4016ce448c4b5007c54db7ee39489d9
Published: 2024-05-03T09:52:28.758Z
Last Modified: 2024-08-02T02:42:59.879Z
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