HOMEVULNERABILITIESCVE-2019-20016
MEDIUM

CVE-2019-20016

CWE-787Published: December 27, 2019· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

libmysofa before 2019-11-24 does not properly restrict recursive function calls, as demonstrated by reports of stack consumption in readOHDRHeaderMessageDatatype in dataobject.c and directblockRead in fractalhead.c. NOTE: a download of v0.9 after 2019-12-06 should fully remediate this issue.

NVD Source

Technical Analysis

CVE-2019-20016 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

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

symonics1 product(s)
libmysofa
Source: NVD CPE · 1 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

PATCHhttps://github.com/hoene/libmysofa/commit/2e6fac6ab6156dae8e8c6f417741388084b70d6f
PATCHhttps://github.com/hoene/libmysofa/commit/2e6fac6ab6156dae8e8c6f417741388084b70d6f
ADVISORYhttps://github.com/hoene/libmysofa/issues/83
ADVISORYhttps://github.com/hoene/libmysofa/issues/84
ADVISORYhttps://github.com/hoene/libmysofa/issues/83
ADVISORYhttps://github.com/hoene/libmysofa/issues/84

All References (6)

→
https://github.com/hoene/libmysofa/commit/2e6fac6ab6156dae8e8c6f417741388084b70d6fPatch · Third Party Advisory
→
https://github.com/hoene/libmysofa/issues/83Exploit · Third Party Advisory
→
https://github.com/hoene/libmysofa/issues/84Exploit · Third Party Advisory
→
https://github.com/hoene/libmysofa/commit/2e6fac6ab6156dae8e8c6f417741388084b70d6fPatch · Third Party Advisory
→
https://github.com/hoene/libmysofa/issues/83Exploit · Third Party Advisory
→
https://github.com/hoene/libmysofa/issues/84Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-20016
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedDec 27, 2019

Related CVEs (CWE-787)

CVE-2013-5610
10.0
CVE-2012-0751
10.0
CVE-2026-4746
10.0
CVE-2002-2227
10.0
CVE-2011-1807
10.0
CVE-2014-1478
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-20016 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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