Release date:
2026-05-07 22:37:14 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 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-python27_2.7.18-18_amd64.deb
sha:1254e464c108da6c6ff3d53e69357ffc9810bc88
-
alt-python27-debug_2.7.18-18_amd64.deb
sha:c9e290c72929da7978a094804d8b233ec96fc2d2
-
alt-python27-devel_2.7.18-18_amd64.deb
sha:4706aad6d4f03391e67d7230dfd147618acda679
-
alt-python27-idle_2.7.18-18_amd64.deb
sha:b30a09bf80010f1c7e3f82c3ee7110b89fa15827
-
alt-python27-libs_2.7.18-18_amd64.deb
sha:ab621faa325c36f10b957ffe8da23794bdb2c8d2
-
alt-python27-test_2.7.18-18_amd64.deb
sha:90fd60e52423c17bb2b8aa47bc9b098d8402c081
-
alt-python27-tkinter_2.7.18-18_amd64.deb
sha:2c44e9f36d7a092d356ac4c9b3b52ae3405f3a9f
-
alt-python27-tools_2.7.18-18_amd64.deb
sha:85d26a8e1d22015920d125e4d0ff6a1bc4c36c97
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
