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CVE-2020-16135

Date: July 29, 2020

libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.

Language: C

Severity Score

Related Resources (17)

https://usn.ubuntu.com/4447-1/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCIKQRKXAAB4HMWM62EPZJ4DVBHIIEG6/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-16135
https://access.redhat.com/security/cve/CVE-2020-16135
https://nvd.nist.gov/vuln/detail/CVE-2020-16135
https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
https://security.alpinelinux.org/vuln/CVE-2020-16135
https://bugs.libssh.org/T232
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120
https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCIKQRKXAAB4HMWM62EPZJ4DVBHIIEG6/
https://security-tracker.debian.org/tracker/CVE-2020-16135
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JNW5GBC6JFN76VEWQXMLT5F7VCZ5AJ2E/
https://security.gentoo.org/glsa/202011-05
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNW5GBC6JFN76VEWQXMLT5F7VCZ5AJ2E/
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.mend.io/vulnerability-database/CVE-2020-16135

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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