Bug 1209420 (CVE-2023-28531) - VUL-0: CVE-2023-28531: openssh: ssh-add adds smartcard keys to ssh-agent without the intended per-hop destination constraints.
Summary: VUL-0: CVE-2023-28531: openssh: ssh-add adds smartcard keys to ssh-agent with...
Status: RESOLVED FIXED
Alias: CVE-2023-28531
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Scott Reeves
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/360496/
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Depends on:
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Reported: 2023-03-17 09:07 UTC by Robert Frohl
Modified: 2024-07-04 09:46 UTC (History)
3 users (show)

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Found By: Security Response Team
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Robert Frohl 2023-03-17 09:07:39 UTC 
CVE-2023-28531

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the
intended per-hop destination constraints.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-28531
https://www.cve.org/CVERecord?id=CVE-2023-28531
http://www.openwall.com/lists/oss-security/2023/03/15/8
Comment 1 Robert Frohl 2023-03-17 09:31:30 UTC 
only relevant for openSUSE:Factory as the 8.9 is shipped there:

>  ssh-add(1): when adding smartcard keys to ssh-agent(1) with the
>   per-hop desination constraints (ssh-add -h ...) added in OpenSSH
>   8.9, a logic error prevented the constraints from being
>   communicated to the agent. This resulted in the keys being added
>   without constraints. The common cases of non-smartcard keys and
>   keys without destination constraints are unaffected. This problem
>   was reported by Luci Stanescu.
Comment 2 Marcus Meissner 2024-07-04 09:46:40 UTC 
is fixed in factory i think