CVE-2023-1667

A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 78%
Affected Products (NVD)
VendorProductVersion
libsshlibssh
0.9.1 ≤
𝑥
≤ 0.9.6
libsshlibssh
0.10.0 ≤
𝑥
≤ 0.10.4
debiandebian_linux
10.0
redhatenterprise_linux
8.0
redhatenterprise_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libssh
bookworm
0.10.6-0+deb12u1
fixed
bookworm (security)
0.10.6-0+deb12u1
fixed
bullseye
0.9.8-0+deb11u1
fixed
bullseye (security)
0.9.8-0+deb11u1
fixed
sid
0.11.1-1
fixed
trixie
0.11.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libssh
bionic
needs-triage
focal
Fixed 0.9.3-2ubuntu2.3
released
jammy
Fixed 0.9.6-2ubuntu0.22.04.1
released
kinetic
Fixed 0.9.6-2ubuntu0.22.10.1
released
lunar
Fixed 0.10.4-2ubuntu0.1
released
mantic
Fixed 0.10.5-2
released
noble
Fixed 0.10.5-2
released
oracular
Fixed 0.10.5-2
released
trusty
ignored
xenial
ignored
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libssh-config
suse enterprise desktop 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise desktop 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise desktop 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise sap 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP4
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP7
0.9.8-150600.9.1
fixed
libssh-devel
suse enterprise desktop 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise desktop 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise desktop 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise sap 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP4
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP7
0.9.8-150600.9.1
fixed
libssh4
suse enterprise desktop 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise desktop 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise desktop 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise sap 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP4
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP7
0.9.8-150600.9.1
fixed
libssh4-32bit
suse enterprise desktop 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise desktop 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise desktop 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise sap 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise sap 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise sap 15 SP7
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP2
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP3
0.9.8-150200.13.3.1
fixed
suse enterprise server 15 SP4
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP5
0.9.8-150400.3.3.1
fixed
suse enterprise server 15 SP6
0.9.8-150600.9.1
fixed
suse enterprise server 15 SP7
0.9.8-150600.9.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
libssh
RHEL 8
0:0.9.6-10.el8_8
fixed
RHEL 8.6 AUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 E4S
0:0.9.6-4.el8_6
fixed
RHEL 8.6 EUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 TUS
0:0.9.6-4.el8_6
fixed
RHEL 8.8 AUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 E4S
0:0.9.6-10.el8_8
fixed
RHEL 8.8 EUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 TUS
0:0.9.6-10.el8_8
fixed
RHEL 9
0:0.10.4-11.el9
fixed
libssh-config
RHEL 8
0:0.9.6-10.el8_8
fixed
RHEL 8.6 AUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 E4S
0:0.9.6-4.el8_6
fixed
RHEL 8.6 EUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 TUS
0:0.9.6-4.el8_6
fixed
RHEL 8.8 AUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 E4S
0:0.9.6-10.el8_8
fixed
RHEL 8.8 EUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 TUS
0:0.9.6-10.el8_8
fixed
RHEL 9
0:0.10.4-11.el9
fixed
libssh-devel
RHEL 8
0:0.9.6-10.el8_8
fixed
RHEL 8.6 AUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 E4S
0:0.9.6-4.el8_6
fixed
RHEL 8.6 EUS
0:0.9.6-4.el8_6
fixed
RHEL 8.6 TUS
0:0.9.6-4.el8_6
fixed
RHEL 8.8 AUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 E4S
0:0.9.6-10.el8_8
fixed
RHEL 8.8 EUS
0:0.9.6-10.el8_8
fixed
RHEL 8.8 TUS
0:0.9.6-10.el8_8
fixed
RHEL 9
0:0.10.4-11.el9
fixed
Common Weakness Enumeration
References
http://www.libssh.org/security/advisories/CVE-2023-1667.txt
https://access.redhat.com/security/cve/CVE-2023-1667
https://bugzilla.redhat.com/show_bug.cgi?id=2182199
https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
https://security.gentoo.org/glsa/202312-05
http://www.libssh.org/security/advisories/CVE-2023-1667.txt
https://access.redhat.com/security/cve/CVE-2023-1667
https://bugzilla.redhat.com/show_bug.cgi?id=2182199
https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
https://security.gentoo.org/glsa/202312-05