Bug 1174713 (CVE-2020-16135)

Summary: VUL-1: CVE-2020-16135: libssh: NULL pointer dereference in sftpserver.c
Product: [Novell Products] SUSE Security Incidents Reporter: Wolfgang Frisch <wolfgang.frisch>
Component: IncidentsAssignee: James McDonough <jmcdonough>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Minor    
Priority: P4 - Low CC: meissner, smash_bz
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/264527/
Whiteboard: CVSSv3.1:SUSE:CVE-2020-16135:5.9:(AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Comment 1 Wolfgang Frisch 2020-07-30 08:28:35 UTC
It is currently unknown if or how this bug is exploitable. There are several other missing return checks fixed by upstream that could be applied:
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120

Missing return checks are found in:

SUSE:SLE-12:Update     [1]
SUSE:SLE-12-SP5:Update
SUSE:SLE-15:Update
SUSE:SLE-15-SP1:Update

[1] Different implementation that nevertheless lacks NULL pointer checks.
Comment 2 OBSbugzilla Bot 2020-09-21 20:00:08 UTC
This is an autogenerated message for OBS integration:
This bug (1174713) was mentioned in
https://build.opensuse.org/request/show/835910 Factory / libssh
Comment 5 James McDonough 2022-05-25 19:17:54 UTC
fixed