High severity7.0NVD Advisory· Published Dec 24, 2023· Updated Jun 17, 2026
CVE-2023-51767
CVE-2023-51767
Description
OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states "we do not consider it to be the application's responsibility to defend against platform architectural weaknesses."
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
34- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- OpenSSH/OpenSSHdescription
- osv-coords28 versionspkg:apk/chainguard/opensshpkg:apk/chainguard/openssh-clientpkg:apk/chainguard/openssh-docpkg:apk/chainguard/openssh-keygenpkg:apk/chainguard/openssh-keyscanpkg:apk/chainguard/openssh-keysignpkg:apk/chainguard/openssh-pam-configpkg:apk/chainguard/openssh-pam-configurationpkg:apk/chainguard/openssh-pkcs11-helperpkg:apk/chainguard/openssh-serverpkg:apk/chainguard/openssh-server-configpkg:apk/chainguard/openssh-servicepkg:apk/chainguard/openssh-sftp-serverpkg:apk/chainguard/openssh-sk-helperpkg:apk/wolfi/opensshpkg:apk/wolfi/openssh-clientpkg:apk/wolfi/openssh-docpkg:apk/wolfi/openssh-keygenpkg:apk/wolfi/openssh-keyscanpkg:apk/wolfi/openssh-keysignpkg:apk/wolfi/openssh-pam-configpkg:apk/wolfi/openssh-pam-configurationpkg:apk/wolfi/openssh-pkcs11-helperpkg:apk/wolfi/openssh-serverpkg:apk/wolfi/openssh-server-configpkg:apk/wolfi/openssh-servicepkg:apk/wolfi/openssh-sftp-serverpkg:apk/wolfi/openssh-sk-helper
< 9.6_p1-r0+ 27 more
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
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- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
- (no CPE)range: < 9.6_p1-r0
Patches
Vulnerability mechanics
References
34- access.redhat.com/security/cve/CVE-2023-51767nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- security.netapp.com/advisory/ntap-20240125-0006/nvdThird Party Advisory
- ubuntu.com/security/CVE-2023-51767nvdThird Party Advisory
- arxiv.org/abs/2309.02545nvdTechnical Description
- github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.cnvdProduct
- github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.cnvdProduct
- www.openwall.com/lists/oss-security/2025/09/22/1nvd
- www.openwall.com/lists/oss-security/2025/09/22/2nvd
- www.openwall.com/lists/oss-security/2025/09/23/1nvd
- www.openwall.com/lists/oss-security/2025/09/23/3nvd
- www.openwall.com/lists/oss-security/2025/09/23/4nvd
- www.openwall.com/lists/oss-security/2025/09/23/5nvd
- www.openwall.com/lists/oss-security/2025/09/24/4nvd
- www.openwall.com/lists/oss-security/2025/09/24/7nvd
- www.openwall.com/lists/oss-security/2025/09/25/2nvd
- www.openwall.com/lists/oss-security/2025/09/25/6nvd
- www.openwall.com/lists/oss-security/2025/09/26/2nvd
- www.openwall.com/lists/oss-security/2025/09/26/4nvd
- www.openwall.com/lists/oss-security/2025/09/27/1nvd
- www.openwall.com/lists/oss-security/2025/09/27/2nvd
- www.openwall.com/lists/oss-security/2025/09/27/3nvd
- www.openwall.com/lists/oss-security/2025/09/27/4nvd
- www.openwall.com/lists/oss-security/2025/09/27/5nvd
- www.openwall.com/lists/oss-security/2025/09/27/6nvd
- www.openwall.com/lists/oss-security/2025/09/27/7nvd
- www.openwall.com/lists/oss-security/2025/09/28/7nvd
- www.openwall.com/lists/oss-security/2025/09/29/1nvd
- www.openwall.com/lists/oss-security/2025/09/29/4nvd
- www.openwall.com/lists/oss-security/2025/09/29/5nvd
- www.openwall.com/lists/oss-security/2025/09/29/6nvd
- www.openwall.com/lists/oss-security/2025/10/01/1nvd
- www.openwall.com/lists/oss-security/2025/10/01/2nvd
- www.openwall.com/lists/oss-security/2025/09/22/1nvd
News mentions
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