Release date:
2026-05-13 14:35:57 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:51557167a085f7b3a4daa97c7c4a92778bd6ecba
-
alt-python36-debug_3.6.15-32_amd64.deb
sha:c1b0f0bde0541b0e297a0db36bead07a593d0fcd
-
alt-python36-devel_3.6.15-32_amd64.deb
sha:ae30631381fa710c8a89ff6b4904dcfcb9a2df82
-
alt-python36-libs_3.6.15-32_amd64.deb
sha:3b4699c6b6362e8c03c30b1f7655537b66754c73
-
alt-python36-test_3.6.15-32_amd64.deb
sha:c3af0a0182a3a4b1e51715a3ce748cef274a28b0
-
alt-python36-tkinter_3.6.15-32_amd64.deb
sha:51139de0aa44e633436da6072efe25859bdee920
-
alt-python36-tools_3.6.15-32_amd64.deb
sha:64af7ced78a217514addb656b1a25314cfb3f89b
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
