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CVE-2023-52323

Publication date 5 January 2024

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

Read the notes from the security team

Status

Package Ubuntu Release Status
pycryptodome 24.04 LTS noble
Not affected
23.10 mantic Ignored
23.04 lunar Ignored
22.04 LTS jammy
Fixed 3.11.0+dfsg1-3ubuntu0.1
20.04 LTS focal Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
14.04 LTS trusty Ignored

Notes

mdeslaur

Ubuntu 20.04 LTS and older contain a substantially older codebase which would require major intrusive changes to remediate all side-channel attacks. Due to the high risk of regressions, we will not be fixing this issue in focal and older. If this issue is critical in your environment, we recommend migrating to a more recent version of Ubuntu.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
pycryptodome

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N