Bug 1217630 - VUL-0: CVE-2023-49092: rage-encryption: RustCrypto/RSA: Marvin Attack - potential key recovery through timing sidechannels
Summary: VUL-0: CVE-2023-49092: rage-encryption: RustCrypto/RSA: Marvin Attack - poten...
Status: NEW
Alias: None
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: William Brown
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/386375/
Whiteboard:
Keywords:
Depends on: CVE-2023-49092
Blocks:
  Show dependency tree / graph
 
Reported: 2023-11-29 09:24 UTC by Carlos López
Modified: 2023-11-30 00:31 UTC (History)
4 users (show)

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Found By: Security Response Team
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Carlos López 2023-11-29 09:24:33 UTC 
+++ This bug was initially created as a clone of Bug #1217629 +++

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.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-49092
Comment 1 Carlos López 2023-11-29 09:35:35 UTC 
- SUSE:SLE-15-SP5:Update/rage-encryption: rsa v0.7.2
- openSUSE:Factory/rage-encryption: rsa v0.7.2
Comment 2 William Brown 2023-11-30 00:28:41 UTC 
No patches available yet. Severity reduced on rage due to no network operations.
Comment 3 William Brown 2023-11-30 00:31:19 UTC 
Only attack vector here would be ssh-rsa keys, which are not the default.