Release date:
2026-05-13 14:32:59 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:496cc52b2f9cc526c4077833284c167afef83d18
-
alt-python36-debug_3.6.15-32_amd64.deb
sha:d94bc0827128f68a02ccfe6e8785caa5c322bd9d
-
alt-python36-devel_3.6.15-32_amd64.deb
sha:c88f81a2ce298bd2f517776efd52aaba6ac54bd1
-
alt-python36-libs_3.6.15-32_amd64.deb
sha:ea45e9935c6b8ccd560ad5cb7958ad60128efaab
-
alt-python36-test_3.6.15-32_amd64.deb
sha:a6ca2b097e0b89629d50bd8c01d6fc4e22f9d3d8
-
alt-python36-tkinter_3.6.15-32_amd64.deb
sha:03164267baca75f9f253d2b0234b6e70dfbbe891
-
alt-python36-tools_3.6.15-32_amd64.deb
sha:1df09229d62645df1a162c4f524ff1e9128553f6
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
