CVE-2025-69277

Publication date 31 December 2025

Last updated 8 January 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

4.5 · Medium

Score breakdown

Description

libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.

Status

Package Ubuntu Release Status
libsodium 25.10 questing
Fixed 1.0.18-1ubuntu0.25.10.1
25.04 plucky
Fixed 1.0.18-1ubuntu0.25.04.1
24.04 LTS noble
Fixed 1.0.18-1ubuntu0.24.04.1
22.04 LTS jammy
Fixed 1.0.18-1ubuntu0.22.04.1
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

Patch details

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

Package Patch details
libsodium

Severity score breakdown

Parameter Value
Base score 4.5 · Medium
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references