CVE catalog
CVE-2023-51767
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 resis
- Severity
- High · CVSS 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.66% · Oct 25, 2026
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."
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | openssh | Not reported | Not reported | unknown |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Alpine | openssh | 3.19 | 9.7_p1-r0 | fixed |
| Alpine | openssh | 3.20 | 9.7_p1-r0 | fixed |
| Alpine | openssh | 3.21 | 9.7_p1-r0 | fixed |
| Alpine | openssh | 3.22 | 9.7_p1-r0 | fixed |
| Alpine | openssh | 3.23 | 9.7_p1-r0 | fixed |
| Alpine | openssh | 3.24 | 9.7_p1-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Alpine | openssh | apk | 3.19 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
| Alpine | openssh | apk | 3.20 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
| Alpine | openssh | apk | 3.21 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
| Alpine | openssh | apk | 3.22 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
| Alpine | openssh | apk | 3.23 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
| Alpine | openssh | apk | 3.24 | 9.7_p1-r0 | Not reported | ALPINE-CVE-2023-51767 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-794697.json]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2023-51767]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-51767]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-51767]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-51767.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-3215.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]