Home/CVE/TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System
CVE

CVE-2019-15680

TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System

TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.

HIGH · CVSS 7.5 EPSS 0.00731
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
tightvncall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · vulnerability@kaspersky.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Oct 2019 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

4
siemens-csafSSA-478893
usnUSN-4407-1
suse-csafSUSE-SU-2019:14235-1
cisa-csafcisa-csaf-csaf_files-OT-white-2020-icsa-20-343-08
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08
https://usn.ubuntu.com/4407-1/
https://www.openwall.com/lists/oss-security/2018/12/10/5Mailing ListThird Party Advisory
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