Home/CVE/An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.
CVE

CVE-2020-14397

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.

HIGH · CVSS 7.5 EPSS 0.04438
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

10
libvnc project libvncserver<= 0.9.12
canonical ubuntu linuxall versions
debian linuxall versions
siemens simatic itc1500 firmware>= 3.0.0.0 and < 3.2.1.0
siemens simatic itc1500 pro firmware>= 3.0.0.0 and < 3.2.1.0
siemens simatic itc1900 firmware>= 3.0.0.0 and < 3.2.1.0
siemens simatic itc1900 pro firmware>= 3.0.0.0 and < 3.2.1.0
siemens simatic itc2200 firmware>= 3.0.0.0 and < 3.2.1.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
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 NVD17 Jun 2020 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

12
suse-csafopenSUSE-SU-2024:10598-1
siemens-csafSSA-390195
usnUSN-4573-1
suse-csafSUSE-SU-2020:2167-1
suse-csafopenSUSE-SU-2020:1056-1
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfPatchThird Party Advisory
https://github.com/LibVNC/libvncserver/commit/38e98ee61d74f5f5ab4aa4c77146faad1962d6d0PatchThird Party Advisory
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13Release NotesThird Party Advisory
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