9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
80.8%
Package : libssh
Version : 0.8.7-1+deb10u2
CVE ID : CVE-2019-14889 CVE-2023-1667
Debian Bug : 946548 1035832
Two security issues have been discovered in libssh, a tiny C SSH
library, which may allows an remote authenticated user to cause a denial
of service or inject arbitrary commands.
CVE-2019-14889
A flaw was found with the libssh API function ssh_scp_new() in
versions before 0.9.3 and before 0.8.8. When the libssh SCP client
connects to a server, the scp command, which includes a
user-provided path, is executed on the server-side. In case the
library is used in a way where users can influence the third
parameter of the function, it would become possible for an attacker
to inject arbitrary commands, leading to a compromise of the remote
target.
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.
For Debian 10 buster, these problems have been fixed in version
0.8.7-1+deb10u2.
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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | armhf | libssh-gcrypt-dev | < 0.8.7-1+deb10u2 | libssh-gcrypt-dev_0.8.7-1+deb10u2_armhf.deb |
Debian | 10 | amd64 | libssh-gcrypt-dev | < 0.8.7-1+deb10u2 | libssh-gcrypt-dev_0.8.7-1+deb10u2_amd64.deb |
Debian | 10 | i386 | libssh-4-dbgsym | < 0.8.7-1+deb10u2 | libssh-4-dbgsym_0.8.7-1+deb10u2_i386.deb |
Debian | 11 | mips64el | libssh-4-dbgsym | < 0.9.7-0+deb11u1 | libssh-4-dbgsym_0.9.7-0+deb11u1_mips64el.deb |
Debian | 11 | arm64 | libssh-4-dbgsym | < 0.9.7-0+deb11u1 | libssh-4-dbgsym_0.9.7-0+deb11u1_arm64.deb |
Debian | 11 | mips64el | libssh-gcrypt-4 | < 0.9.7-0+deb11u1 | libssh-gcrypt-4_0.9.7-0+deb11u1_mips64el.deb |
Debian | 11 | all | libssh | < 0.9.7-0+deb11u1 | libssh_0.9.7-0+deb11u1_all.deb |
Debian | 10 | arm64 | libssh-gcrypt-4 | < 0.8.7-1+deb10u2 | libssh-gcrypt-4_0.8.7-1+deb10u2_arm64.deb |
Debian | 10 | armhf | libssh-gcrypt-4 | < 0.8.7-1+deb10u2 | libssh-gcrypt-4_0.8.7-1+deb10u2_armhf.deb |
Debian | 11 | armhf | libssh-gcrypt-dev | < 0.9.7-0+deb11u1 | libssh-gcrypt-dev_0.9.7-0+deb11u1_armhf.deb |
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
80.8%