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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-49092
HistoryNov 28, 2023 - 9:15 p.m.

CVE-2023-49092

2023-11-2821:15:08
Debian Security Bug Tracker
security-tracker.debian.org
5
cve-2023-49092
rustcrypto/rsa
portable rsa implementation
pure rust
information leakage
timing information
network observation
key recovery
fix unavailable
workaround
attacker
timing observation
rsa crate
local use
non-compromised computer
unix

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

37.4%

RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.

OSVersionArchitecturePackageVersionFilename
Debian999allrust-rsa<= 0.9.2-2rust-rsa_0.9.2-2_all.deb

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

37.4%

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