6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
48.7%
Debian Security Advisory DSA-5409-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
May 23, 2023 https://www.debian.org/security/faq
Package : libssh
CVE ID : CVE-2023-1667 CVE-2023-2283
Debian Bug : 1035832
Two security issues have been discovered in libssh, a tiny C SSH library:
CVE-2023-1667
Philip Turnbull discovered a NULL pointer dereference which could
result in denial of service.
CVE-2023-2283
Kevin Backhouse discovered that pki_verify_data_signature() may
fail to correctly validate authentication in memory pressure
situations.
For the stable distribution (bullseye), these problems have been fixed in
version 0.9.7-0+deb11u1.
We recommend that you upgrade your libssh packages.
For the detailed security status of libssh please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libssh
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | amd64 | libssh-gcrypt-4 | < 0.9.7-0+deb11u1 | libssh-gcrypt-4_0.9.7-0+deb11u1_amd64.deb |
Debian | 11 | armel | libssh-dev | < 0.9.7-0+deb11u1 | libssh-dev_0.9.7-0+deb11u1_armel.deb |
Debian | 11 | ppc64el | libssh-gcrypt-4 | < 0.9.7-0+deb11u1 | libssh-gcrypt-4_0.9.7-0+deb11u1_ppc64el.deb |
Debian | 11 | i386 | libssh-4-dbgsym | < 0.9.7-0+deb11u1 | libssh-4-dbgsym_0.9.7-0+deb11u1_i386.deb |
Debian | 11 | i386 | libssh-dev | < 0.9.7-0+deb11u1 | libssh-dev_0.9.7-0+deb11u1_i386.deb |
Debian | 11 | all | libssh-doc | < 0.9.7-0+deb11u1 | libssh-doc_0.9.7-0+deb11u1_all.deb |
Debian | 11 | i386 | libssh-4 | < 0.9.7-0+deb11u1 | libssh-4_0.9.7-0+deb11u1_i386.deb |
Debian | 11 | s390x | libssh-gcrypt-4-dbgsym | < 0.9.7-0+deb11u1 | libssh-gcrypt-4-dbgsym_0.9.7-0+deb11u1_s390x.deb |
Debian | 11 | armhf | libssh-gcrypt-4-dbgsym | < 0.9.7-0+deb11u1 | libssh-gcrypt-4-dbgsym_0.9.7-0+deb11u1_armhf.deb |
Debian | 11 | i386 | libssh-gcrypt-dev | < 0.9.7-0+deb11u1 | libssh-gcrypt-dev_0.9.7-0+deb11u1_i386.deb |