Hi Yoann, Thanks for pointing this out. You are correct.
The Wrynose OpenSSH recipe does not enable the kerberos PACKAGECONFIG by default, so it is configured with --without-kerberos5. Consequently, GSSAPI authentication and GSSAPIStrictAcceptorCheck are not available in the default OE-Core build, and this scenario cannot be triggered. Also, the referenced upstream commit only documents the existing Windows Active Directory behavior; it does not change or remediate that behavior. Therefore, carrying it as a CVE fix would be misleading. We will withdraw this patch and replace it with a configuration-aware CVE_STATUS: not-applicable-config when the kerberos PACKAGECONFIG is disabled, while leaving the CVE unpatched when Kerberos/GSSAPI support is explicitly enabled. Regards, Devansh ________________________________ From: Yoann Congal <[email protected]> Sent: Tuesday, July 21, 2026 20:00 To: Devansh Patel -X (devanshp - E INFOCHIPS PRIVATE LIMITED at Cisco) <[email protected]>; [email protected] <[email protected]> Cc: xe-linux-external (Internal Group) <[email protected]> Subject: Re: [OE-core][wrynose][PATCH 3/8] openssh: Fix CVE-2026-59998 On Mon Jul 20, 2026 at 7:55 PM CEST, Devansh Patel via lists.openembedded.org wrote: > From: Devansh Patel <[email protected]> > > This patch applies the upstream OpenSSH 10.4p1 backport for > CVE-2026-59998. The upstream fix commit is referenced in [1], > and the public CVE advisory is referenced in [2]. > > [1] > https://github.com/openssh/openssh-portable/commit/8058c5bdb507591b79ec926221fbe6fcc296d432 > [2] https://www.cve.org/CVERecord?id=CVE-2026-59998 > > Signed-off-by: Devansh Patel <[email protected]> > --- > .../openssh/openssh/CVE-2026-59998.patch | 36 +++++++++++++++++++ > .../openssh/openssh_10.3p1.bb | 1 + > 2 files changed, 37 insertions(+) > create mode 100644 > meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch > > diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch > b/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch > new file mode 100644 > index 0000000000..3e15fe19fa > --- /dev/null > +++ b/meta/recipes-connectivity/openssh/openssh/CVE-2026-59998.patch > @@ -0,0 +1,36 @@ > +From 94a089cd331eeea77ffd6fd715e61d281c3b97c3 Mon Sep 17 00:00:00 2001 > +From: "[email protected]" <[email protected]> > +Date: Wed, 24 Jun 2026 06:55:12 +0000 > +Subject: [PATCH] upstream: mention a caveat regarding > + GSSAPIStrictAcceptorCheck in > + > +some environments > + > +OpenBSD-Commit-ID: aa7158d8f22cb34063c1c2d3cbcf30a9489847c2 > + > +CVE: CVE-2026-59998 > +Upstream-Status: Backport > [https://github.com/openssh/openssh-portable/commit/8058c5bdb507591b79ec926221fbe6fcc296d432] > + > +Backport Changes: > +- Omitted the upstream OpenBSD revision and Mdocdate-only hunks in > + sshd_config.5 and retained the Wrynose OpenSSH 10.3p1 values because > + this stable backport carries only the security-relevant documentation. > + > +(cherry picked from commit 8058c5bdb507591b79ec926221fbe6fcc296d432) > +Signed-off-by: Devansh Patel <[email protected]> > +--- > + sshd_config.5 | 1 + > + 1 file changed, 1 insertion(+) > + > +diff --git a/sshd_config.5 b/sshd_config.5 > +index 3f5e29812..22b9039d2 100644 > +--- a/sshd_config.5 > ++++ b/sshd_config.5 > +@@ -769,6 +769,7 @@ machine's default store. > + This facility is provided to assist with operation on multi homed machines. > + The default is > + .Cm yes . > ++This option may not be effective in Windows Active Directory environments. This is a oneline manpage patch for "Windows Active Directory environments.". I'm not expert in GSSAPI but can we even trigger this? If not, I think this should be handled with a CVE_STATUS. I'll hold this patch in the meantime. Regards, -- Yoann Congal Smile ECS
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