CVE-2025-1795

Publication date 28 February 2025

Last updated 16 June 2025

Ubuntu priority

Low

Why this priority?

During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.

Read the notes from the security team

Why is this CVE low priority?

Upstream Python developers determined this to be a low severity issue

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
python2.7 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
python3.10 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.10.12-1~22.04.10
20.04 LTS focal Not in release
python3.11 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.11.0~rc1-1~22.04.1~esm4
20.04 LTS focal Not in release
python3.12 25.04 plucky Not in release
24.10 oracular
Not affected
24.04 LTS noble
Fixed 3.12.3-1ubuntu0.6
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
python3.13 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
python3.14 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
python3.4 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
14.04 LTS trusty Ignored not feasible to fix
python3.5 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial Ignored not feasible to fix
14.04 LTS trusty Ignored not feasible to fix
python3.6 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 3.6.9-1~18.04ubuntu1.13+esm5
python3.7 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 3.7.5-2ubuntu1~18.04.2+esm6
python3.8 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.8.10-0ubuntu1~20.04.18+esm1
18.04 LTS bionic
Fixed 3.8.0-3ubuntu1~18.04.2+esm5
python3.9 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.9.5-3ubuntu0~20.04.1+esm5

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Notes

mdeslaur

The initial commit for this issue caused a regression and was subsequently fixed.

hlibk

The folding code in python3.5 and below has changed significantly which makes backporting the regression fix risky.

Patch details

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

Package Patch details
python3.11
python3.12
python3.13