This bug was fixed in the package openssl - 1.1.1j-1ubuntu3.2
---------------
openssl (1.1.1j-1ubuntu3.2) hirsute; urgency=medium
* Cherry-pick an upstream patch to fix s390x AES code (LP: #1931994)
openssl (1.1.1j-1ubuntu3.1) hirsute; urgency=medium
* Split d/p/pr12272.patch into multiple patchfiles to fix dpkg-source
error when attempting to build a source package, due to pr12272.patch
patching files multiple times within the same patch. (LP: #1927161)
- d/p/lp-1927161-1-x86-Add-endbranch-to-indirect-branch-targets-fo.patch
- d/p/lp-1927161-2-Use-swapcontext-for-Intel-CET.patch
- d/p/lp-1927161-3-x86-Always-generate-note-gnu-property-section-f.patch
- d/p/lp-1927161-4-x86_64-Always-generate-note-gnu-property-sectio.patch
- d/p/lp-1927161-5-x86_64-Add-endbranch-at-function-entries-for-In.patch
-- Simon Chopin <simon.cho...@canonical.com> Fri, 23 Jul 2021 14:32:42
+0200
** Changed in: openssl (Ubuntu Hirsute)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1931994
Title:
[Ubuntu 20.04] OpenSSL bugs in the s390x AES code
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in openssl package in Ubuntu:
Fix Released
Status in openssl source package in Bionic:
Fix Committed
Status in openssl source package in Focal:
Fix Committed
Status in openssl source package in Hirsute:
Fix Released
Status in openssl source package in Impish:
Fix Released
Bug description:
Problem description:
When passing a NULL key to reset AES EVC state, the state wouldn't be
completely reset on s390x.
https://github.com/openssl/openssl/pull/14900
Solution available here:
https://github.com/openssl/openssl/commit/dc67210d909b5dd7a50f60a96f36f3f5a891b1c8
Should be applied to all distros where openssl 1.1.1 is included for
consistency reason.
-> 21.10, 20.04, 18.04.
I think not needed for 16.04 anymore....
[Test plan]
$ sudo apt install libssl-dev
$ gcc test.c -o evc-test -lcrypto -lssl # See
https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1931994/comments/2 for
the test.c program
$ ./evc-test && echo OK
[Where problems could occur]
This patch only touches s390x code paths, so there shouldn't be any
regression on other architectures. However, on s390x this could reveal
latent bugs by spreading a NULL key to new code paths.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1931994/+subscriptions
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