CVE-2024-39894

EUVD-2024-38350
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.
TOCTOU
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 86%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
openbsdopenssh
9.5 ≤
𝑥
≤ 9.7
ADP
Debian logo
Debian Releases
Debian Product
Codename
openssh
bookworm
1:9.2p1-2+deb12u7
not-affected
bookworm (security)
1:9.2p1-2+deb12u5
fixed
bullseye
1:8.4p1-5+deb11u3
not-affected
bullseye (security)
1:8.4p1-5+deb11u5
fixed
forky
1:10.2p1-3
fixed
sid
1:10.2p1-3
fixed
trixie
1:10.0p1-7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openssh-ssh1
bionic
not-affected
focal
not-affected
jammy
not-affected
mantic
not-affected
noble
not-affected
openssh
bionic
not-affected
focal
not-affected
jammy
not-affected
mantic
not-affected
noble
Fixed 1:9.6p1-3ubuntu13.4
released
trusty
not-affected
xenial
not-affected
Common Weakness Enumeration
References
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