CVE-2024-39894

Impact

OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.

Affected products

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References

• NVD record
• CVE.org record
• http://www.openwall.com/lists/oss-security/2024/07/03/6
• http://www.openwall.com/lists/oss-security/2024/07/23/4
• http://www.openwall.com/lists/oss-security/2024/07/23/6
• http://www.openwall.com/lists/oss-security/2024/07/28/3
• https://crzphil.github.io/posts/ssh-obfuscation-bypass/
• https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html
• https://news.ycombinator.com/item?id=41508530
• https://security.netapp.com/advisory/ntap-20240712-0004/
• https://www.openssh.com/txt/release-9.8
• https://www.openwall.com/lists/oss-security/2024/07/02/1
• http://seclists.org/fulldisclosure/2024/Sep/33
• http://www.openwall.com/lists/oss-security/2024/07/03/6
• http://www.openwall.com/lists/oss-security/2024/07/23/4
• http://www.openwall.com/lists/oss-security/2024/07/23/6
• http://www.openwall.com/lists/oss-security/2024/07/28/3
• https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html
• https://security.netapp.com/advisory/ntap-20240712-0004/
• https://www.freebsd.org/security/advisories/FreeBSD-SA-25:01.openssh.asc
• https://www.openssh.com/txt/release-9.8
• https://www.openwall.com/lists/oss-security/2024/07/02/1