Release date:
2026-05-13 14:30:01 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:c4bc3864c08bdbab5b7f12ad4179133340fa7d6f
-
alt-python36-debug_3.6.15-32_amd64.deb
sha:41529733298ba903e55db8a20c28a824974bd5a3
-
alt-python36-devel_3.6.15-32_amd64.deb
sha:41e0e7b6aec8516d7f7e3efab8473902cb3df2eb
-
alt-python36-libs_3.6.15-32_amd64.deb
sha:941fc4f74664812bfccd797d4f49ae61cca5abf5
-
alt-python36-test_3.6.15-32_amd64.deb
sha:b3129a5042283d9637b2f5640ff9ee5b2d300a75
-
alt-python36-tkinter_3.6.15-32_amd64.deb
sha:25c25c9914c52e6aae5fa11d7010834806dd7f2e
-
alt-python36-tools_3.6.15-32_amd64.deb
sha:179ca997dd992e0fde4e578df1525997fca5ea74
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
