GHSA-p52g-cm5j-mjv4

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Source
https://github.com/advisories/GHSA-p52g-cm5j-mjv4
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-p52g-cm5j-mjv4/GHSA-p52g-cm5j-mjv4.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-p52g-cm5j-mjv4
Aliases
Related
Published
2023-02-08T22:31:42Z
Modified
2024-09-11T06:12:24.433175Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
openssl-src subject to Timing Oracle in RSA Decryption
Details

A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.

For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.

References

Affected packages

crates.io / openssl-src

Package

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
111.25.0

crates.io / openssl-src

Package

Affected ranges

Type
SEMVER
Events
Introduced
300.0.0
Fixed
300.0.12