Indeed, there is an "extra" change which I saw fit to include after reviewing the change with care.
Replicating the issue directly involves using the openssl C APIs because higher-level interfaces like the command-line ones prevent calling the affected code in a way that will trigger the issue. This significantly increases the effort required to write the testcase. I don't think upstream wrote one either although that is their habit nowadays but it's been some time and I will have to look at it again. Removing (b) wouldn't cause a security issue and it seems (a) is enough to fix the functional issue that has been reported. On the other hand this is a diff from current upstream versions, it will require new tests and the (a+b) changes have seen a lot of use worlwide by now. When including (b), I knew that it was probably not strictly required and I'm fine with removing it even though I would prefer to keep it for the above reasons. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssl in Ubuntu. https://bugs.launchpad.net/bugs/1994165 Title: CMS_final: do not ignore CMS_dataFinal result Status in openssl package in Ubuntu: Fix Released Status in openssl source package in Jammy: In Progress Status in openssl source package in Kinetic: Won't Fix Status in openssl source package in Lunar: Fix Released Bug description: === SRU information === [Meta] This bug is part of a series of three bugs for a single SRU. The "central" bug with the global information and debdiff is http://pad.lv/2033422 [Impact] S/MIME signature can fail silently The commit by upstream propagates the return code of some functions rather than ignore it. [Test plan] This issue is not very simple to reproduce because "openssl cms" cannot be used to do so. This has to be done with the openssl API instead. At least the bug reportere here and the one on openssl's bug tracker have confirmed the patch solves the issue. Additionally, the bug reporter here has tested the PPA that contains the patche and validated it. Finally, I read through the patch attentively. [Where problems could occur] At this point it is unlikely an error would appear. The openssl bug tracker mentions nothing related to this patch which landed more than a year ago. The patch is simple and doesn't change the code logic. [Patches] The patches come directly from upstream and apply cleanly. https://github.com/openssl/openssl/pull/18876 * https://git.launchpad.net/~adrien-n/ubuntu/+source/openssl/tree/debian/patches/jammy-sru-0001-REGRESSION-CMS_final-do-not-ignore-CMS_dataFinal-res.patch?h=jammy-sru&id=04ef023920ab08fba214817523fba897527dfff0 * https://git.launchpad.net/~adrien-n/ubuntu/+source/openssl/tree/debian/patches/jammy-sru-0002-Handle-SMIME_crlf_copy-return-code.patch?h=jammy-sru&id=04ef023920ab08fba214817523fba897527dfff0 === Original description === https://github.com/openssl/openssl/pull/18876 The CMS_dataFinal result is important as signature may fail, however, it is ignored while returning success from CMS_final. Please add this fix to The openssl 3.0.2 "Jammy Jellyfish (supported)" Thanks Upstream commit: ``` commit 67c0460b89cc1b0644a1a59af78284dfd8d720af Author: Alon Bar-Lev <alon.bar...@gmail.com> Date: Tue Jul 26 15:17:06 2022 +0300 Handle SMIME_crlf_copy return code Currently the SMIME_crlf_copy result is ignored in all usages. It does return failure when memory allocation fails. This patch handles the SMIME_crlf_copy return code in all occurrences. Signed-off-by: Alon Bar-Lev <alon.bar...@gmail.com> Reviewed-by: Tomas Mraz <to...@openssl.org> Reviewed-by: Paul Dale <pa...@openssl.org> Reviewed-by: Hugo Landau <hlan...@openssl.org> (Merged from https://github.com/openssl/openssl/pull/18876) ``` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1994165/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
