CVE-2019-3855
libssh2: Integer overflow in transport read resulting in out of bounds write
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Se ha descubierto un error de desbordamiento de enteros que podría conducir a una escritura fuera de límites en libssh2, en versiones anteriores a la 1.8.1, en la forma en la que los paquetes se leen desde el servidor. Un atacante remoto que comprometa un servidor SSH podría ser capaz de ejecutar código en el sistema del cliente cuando un usuario se conecta al servidor
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-01-03 CVE Reserved
- 2019-03-19 CVE Published
- 2024-08-04 CVE Updated
- 2024-10-14 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
- CWE-787: Out-of-bounds Write
CAPEC
References (29)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html | Third Party Advisory |
|
| http://seclists.org/fulldisclosure/2019/Sep/42 | Mailing List |
|
| http://www.securityfocus.com/bid/107485 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html | Mailing List |
|
| https://seclists.org/bugtraq/2019/Apr/25 | Mailing List |
|
| https://seclists.org/bugtraq/2019/Mar/25 | Mailing List |
|
| https://seclists.org/bugtraq/2019/Sep/49 | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20190327-0005 | Third Party Advisory |
|
| https://support.apple.com/kb/HT210609 | Third Party Advisory |
|
| https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2019/03/18/3 | 2023-11-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3855 | 2023-11-07 | |
| https://www.libssh2.org/CVE-2019-3855.html | 2023-11-07 | |
| https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Libssh2 Search vendor "Libssh2" | Libssh2 Search vendor "Libssh2" for product "Libssh2" | < 1.8.1 Search vendor "Libssh2" for product "Libssh2" and version " < 1.8.1" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 28 Search vendor "Fedoraproject" for product "Fedora" and version "28" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 29 Search vendor "Fedoraproject" for product "Fedora" and version "29" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 30 Search vendor "Fedoraproject" for product "Fedora" and version "30" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility" | - | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | advanced_virtualization |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus" | 7.6 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.6" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus" | 7.6 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.6" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus" | 7.6 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.6" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.3 Search vendor "Opensuse" for product "Leap" and version "42.3" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Xcode Search vendor "Apple" for product "Xcode" | < 11.0 Search vendor "Apple" for product "Xcode" and version " < 11.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" | 8.56 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.56" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" | 8.57 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.57" | - |
Affected
| ||||||