CVE-2023-25136
CVE-2023-25136
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
CVSS 6.5 · Moyenne · EPSS 89,8% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system · network
Produits et versions concernés
n/a
- Versions du logiciel
- n/a: Concernée
Aucun correctif publié
openssh Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 1:9.2p1-1
Mettez à jour vers 1:9.2p1-1
openssh Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 1:9.2p1-1
Mettez à jour vers 1:9.2p1-1
openssh Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 1:9.2p1-1
Mettez à jour vers 1:9.2p1-1
Sources originales
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig
- https://www.openwall.com/lists/oss-security/2023/02/02/2
- https://bugzilla.mindrot.org/show_bug.cgi?id=3522
- https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946
- https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/
- https://news.ycombinator.com/item?id=34711565
- http://www.openwall.com/lists/oss-security/2023/02/13/1
- http://www.openwall.com/lists/oss-security/2023/02/22/1
- http://www.openwall.com/lists/oss-security/2023/02/22/2
- http://www.openwall.com/lists/oss-security/2023/02/23/3
- http://www.openwall.com/lists/oss-security/2023/03/06/1
- http://www.openwall.com/lists/oss-security/2023/03/09/2
- https://security.netapp.com/advisory/ntap-20230309-0003/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/
- https://security.gentoo.org/glsa/202307-01
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-25136