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Fedora Update Notification
FEDORA-2023-749dd47c79
2023-03-11 03:04:11.186915
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Name : python-cryptography
Product : Fedora 38
Version : 37.0.2
Release : 8.fc38
URL :
https://cryptography.io/en/latest/
Summary : PyCA's cryptography library
Description :
cryptography is a package designed to expose cryptographic primitives and
recipes to Python developers.
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Update Information:
Security fix for CVE-2023-23931 cryptography is a package designed to expose
cryptographic primitives and recipes to Python developers. In affected versions
`Cipher.update_into` would accept Python objects which implement the buffer
protocol, but provide only immutable buffers. This would allow immutable objects
(such as `bytes`) to be mutated, thus violating fundamental rules of Python and
resulting in corrupted output. This now correctly raises an exception. This
issue has been present since `update_into` was originally introduced in
cryptography 1.8.
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ChangeLog:
* Wed Feb 22 2023 Christian Heimes <cheimes(a)redhat.com> - 37.0.2-8
- Fix CVE-2023-23931: Don't allow update_into to mutate immutable objects, resolves
rhbz#2171820
- Fix FTBFS due to failing test_load_invalid_ec_key_from_pem and
test_decrypt_invalid_decrypt, resolves rhbz#2171661
* Fri Jan 20 2023 Fedora Release Engineering <releng(a)fedoraproject.org> - 37.0.2-7
- Rebuilt for
https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
* Fri Dec 9 2022 Christian Heimes <cheimes(a)redhat.com> - 37.0.2-6
- Enable SHA1 signatures in test suite (ELN-only)
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References:
[ 1 ] Bug #2171817 - CVE-2023-23931 python-cryptography: memory corruption via immutable
objects
https://bugzilla.redhat.com/show_bug.cgi?id=2171817
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2023-749dd47c79' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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