Debian Bug report logs -
#1042460
openssh-client: ssh-agent CVE-2023-38408
Reported by: Matija Nalis <mnalis-debianbug@voyager.hr>
Date: Fri, 28 Jul 2023 14:51:01 UTC
Severity: grave
Tags: security, upstream
Found in versions openssh/1:8.4p1-5, openssh/1:8.4p1-5+deb11u1
Fixed in version openssh/1:9.3p2-1
Done: Salvatore Bonaccorso <carnil@debian.org>
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to debian-bugs-dist@lists.debian.org, mnalis-debianbug@voyager.hr, team@security.debian.org, Debian OpenSSH Maintainers <debian-ssh@lists.debian.org>
:
Bug#1042460
; Package openssh-client
.
(Fri, 28 Jul 2023 14:51:03 GMT) (full text, mbox, link).
Acknowledgement sent
to Matija Nalis <mnalis-debianbug@voyager.hr>
:
New Bug report received and forwarded. Copy sent to mnalis-debianbug@voyager.hr, team@security.debian.org, Debian OpenSSH Maintainers <debian-ssh@lists.debian.org>
.
(Fri, 28 Jul 2023 14:51:03 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Package: openssh-client
Version: 1:8.4p1-5+deb11u1
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: mnalis-debianbug@voyager.hr, Debian Security Team <team@security.debian.org>
"The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an
insufficiently trustworthy search path, leading to remote code execution if
an agent is forwarded to an attacker-controlled system."
While it does not affect all users of ssh-agent, it does affect many of them
and commonly suggested workaround (using jumphosts instead of agent forwarding)
is not applicable to many use cases (git push over ssh, using
libpam-ssh-agent-auth, etc.)
https://security-tracker.debian.org/tracker/CVE-2023-38408 indicates that
the new fixed version 1:9.3p2-1 has been uploaded in sid and trixie, however
bookworm (stable) and bullseye (oldstable) still have no security fix since
CVE release on 2023-07-20.
(workaround by pinning fixed version from trixie is not possible, due to
significant libraries clash; and there are no Debian backports either)
-- System Information:
Debian Release: 11.7
APT prefers oldstable-updates
APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-23-amd64 (SMP w/1 CPU thread)
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages openssh-client depends on:
ii adduser 3.118
ii dpkg 1.20.12
ii libc6 2.31-13+deb11u6
ii libedit2 3.1-20210910-1
ii libfido2-1 1.6.0-2
ii libgssapi-krb5-2 1.18.3-6+deb11u3
ii libselinux1 3.1-3
ii libssl1.1 1.1.1n-0+deb11u5
ii passwd 1:4.8.1-1
ii zlib1g 1:1.2.11.dfsg-2+deb11u2
Versions of packages openssh-client recommends:
pn xauth <none>
Versions of packages openssh-client suggests:
pn keychain <none>
pn libpam-ssh <none>
pn monkeysphere <none>
pn ssh-askpass <none>
-- no debconf information
Marked as found in versions openssh/1:8.4p1-5.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org
.
(Fri, 28 Jul 2023 19:45:09 GMT) (full text, mbox, link).
Marked as fixed in versions openssh/1:9.3p2-1.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org
.
(Fri, 28 Jul 2023 19:45:09 GMT) (full text, mbox, link).
Marked Bug as done
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org
.
(Fri, 28 Jul 2023 19:45:10 GMT) (full text, mbox, link).
Notification sent
to Matija Nalis <mnalis-debianbug@voyager.hr>
:
Bug acknowledged by developer.
(Fri, 28 Jul 2023 19:45:10 GMT) (full text, mbox, link).
Message sent on
to Matija Nalis <mnalis-debianbug@voyager.hr>
:
Bug#1042460.
(Fri, 28 Jul 2023 19:45:16 GMT) (full text, mbox, link).
Message #16 received at 1042460-submitter@bugs.debian.org (full text, mbox, reply):
found 1042460 1:8.4p1-5
close 1042460 1:9.3p2-1
thanks
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