HOMEVULNERABILITIESCVE-2020-36149
MEDIUM

CVE-2020-36149

CWE-476Published: February 8, 2021· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

Incorrect handling of input data in changeAttribute function in the libmysofa library 0.5 - 1.1 will lead to NULL pointer dereference and segmentation fault error in case of restrictive memory protection or near NULL pointer overwrite in case of no memory restrictions (e.g. in embedded environments).

NVD Source

Technical Analysis

CVE-2020-36149 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Fedora1 product(s)
fedora
symonics1 product(s)
libmysofa
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/hoene/libmysofa/issues/137
ADVISORYhttps://github.com/hoene/libmysofa/issues/137

All References (4)

→
https://github.com/hoene/libmysofa/issues/137Exploit · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQLNZOVVONQSZZJHQVZT6NMOUUDMGBBR/
→
https://github.com/hoene/libmysofa/issues/137Exploit · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQLNZOVVONQSZZJHQVZT6NMOUUDMGBBR/

Quick Facts

CVE IDCVE-2020-36149
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 8, 2021

Related CVEs (CWE-476)

CVE-2022-36648
10.0
CVE-2010-2495
10.0
CVE-2016-5689
9.8
CVE-2016-6692
9.8
CVE-2015-0573
9.8
CVE-2016-3821
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-36149 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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