CVE-2020-16135
libssh: NULL pointer dereference in sftpserver.c if ssh_buffer_new returns NULL
Severity Score
5.9
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
libssh versión 0.9.4, presenta una desreferencia del puntero NULL en el archivo tftpserver.c si la función ssh_buffer_new devuelve NULL
A flaw was found in libssh. A NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
*Credits:
N/A
CVSS Scores
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
- 2020-07-29 CVE Reserved
- 2020-07-29 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-11-22 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238 | 2024-08-04 |
| URL | Date | SRC |
|---|---|---|
| https://www.oracle.com/security-alerts/cpuapr2022.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Libssh Search vendor "Libssh" | Libssh Search vendor "Libssh" for product "Libssh" | 0.9.4 Search vendor "Libssh" for product "Libssh" and version "0.9.4" | - |
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
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04" | lts |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy" | 1.15.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.15.0" | - |
Affected
| ||||||