Release date:
2026-05-13 14:14:10 UTC
Description:
* SECURITY UPDATE: binascii.a2b_base64 / base64.b64decode stop decoding
after the first padded quad, silently dropping any excess data. The
behaviour can lead to data being accepted that other implementations
process differently.
- debian/patches/CVE-2026-3446.patch: backport of upstream commits
4561f6418a (main), e31c55121620 (3.14), 1f9958f909c1 (3.13). Treats
the pad character as non-alphabet data per RFC 4648 section 3.3:
the loop in binascii_a2b_base64_impl no longer breaks out on a pad
sequence; a `pads` counter is added so post-loop validation still
raises "Incorrect padding" for inputs that do not satisfy
`quad_pos + pads == 4`. The unused `binascii_find_valid` helper
is removed.
- CVE-2026-3446
Updated packages:
-
alt-python36_3.6.15-32_amd64.deb
sha:792a1ef41a4384ddc7b6b1b10128a711e64220ed
-
alt-python36-debug_3.6.15-32_amd64.deb
sha:cca0e2205155918101d0cbde26e22cc8f15e4d94
-
alt-python36-devel_3.6.15-32_amd64.deb
sha:8c967a43ab01e3610a5de1e7b0428410aef6920b
-
alt-python36-libs_3.6.15-32_amd64.deb
sha:4ea1e6d978cd43ecbc4818eee35a6eede43bb7fa
-
alt-python36-test_3.6.15-32_amd64.deb
sha:812594e388e04527ba0fb58153d35c1559ceb0de
-
alt-python36-tkinter_3.6.15-32_amd64.deb
sha:151da612fb1aec48b11b6bef4538310047f18bd5
-
alt-python36-tools_3.6.15-32_amd64.deb
sha:9fdcd5b30ba00bd1c947434a4063b9b554da1b6c
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
