Vulnerability Details : CVE-2020-16135
Potential exploit
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-16135
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.9.4:*:*:*:*:*:*:*
Threat overview for CVE-2020-16135
Top countries where our scanners detected CVE-2020-16135
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-16135 629
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-16135!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2020-16135
0.73%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-16135
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2020-16135
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-16135
-
https://bugs.libssh.org/T232
⚓ T232 [sftpserver] NULL pointer derefIssue Tracking;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCIKQRKXAAB4HMWM62EPZJ4DVBHIIEG6/
[SECURITY] Fedora 33 Update: libssh-0.9.5-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://security.gentoo.org/glsa/202011-05
libssh: Denial of Service (GLSA 202011-05) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JNW5GBC6JFN76VEWQXMLT5F7VCZ5AJ2E/
[SECURITY] Fedora 32 Update: libssh-0.9.5-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html
[SECURITY] [DLA 2303-1] libssh security updateMailing List;Third Party Advisory
-
https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
rLIBSSHe631ebb3e224Exploit;Issue Tracking;Vendor Advisory
-
https://usn.ubuntu.com/4447-1/
USN-4447-1: libssh vulnerability | Ubuntu security notices | UbuntuThird Party Advisory
-
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120
Add missing return checks (!120) · Merge Requests · libssh project / libssh-mirror · GitLabThird Party Advisory
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