> [Edit: According to @rlpb's comment, git 2.39.1 is already available on Ubuntu]
Note that I said Ubuntu's git package was updated, but didn't say to what version. Ubuntu like most stable distributions cherry-pick security fixes rather than bump major versions, so Ubuntu users will get a version with these vulnerabilities patched but not necessarily a bump up to 2.39.1. See https://ubuntu.com/security/notices/USN-5810-1 for details.
I'm not sure why they aren't bumping the patch number, maybe they decided against applying the other parts of the patch for least change - but at least the CVEs are mentioned in all of the Ubuntu changelogs.
I can't find anything in the Debian changelogs referring to the CVEs. Yet the Ubuntu changelog refers to it as a debian patch...
Note that I said Ubuntu's git package was updated, but didn't say to what version. Ubuntu like most stable distributions cherry-pick security fixes rather than bump major versions, so Ubuntu users will get a version with these vulnerabilities patched but not necessarily a bump up to 2.39.1. See https://ubuntu.com/security/notices/USN-5810-1 for details.