Bug 2269723 (CVE-2024-3296) - CVE-2024-3296 rust-openssl: timing based side-channel can lead to a Bleichenbacher style attack
Summary: CVE-2024-3296 rust-openssl: timing based side-channel can lead to a Bleichenb...
Keywords:
Status: NEW
Alias: CVE-2024-3296
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2269725
Blocks: 2269720
TreeView+ depends on / blocked
 
Reported: 2024-03-15 16:51 UTC by Robb Gatica
Modified: 2024-04-18 07:28 UTC (History)
1 user (show)

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A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.
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Description Robb Gatica 2024-03-15 16:51:20 UTC 
Description:
A timing based side-channel exists in the rust-openssl package which could be sufficient to recover a plaintext across a network in
a Bleichenbacher style attack. To achieve successful decryption an attacker would have to be able to send a large number of trial messages for
decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.

References:
https://people.redhat.com/~hkario/marvin/
https://github.com/sfackler/rust-openssl/issues/2171
Comment 1 Robb Gatica 2024-03-15 17:12:35 UTC 
Created rust-openssl tracking bugs for this issue:

Affects: fedora-all [bug 2269725]
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