Buffer Overflow in LibVNCServer Affects Multiple Platforms
CVE-2019-20839

7.5HIGH

Key Information:

Vendor

Libvnc Project

Status
Libvncserver
Vendor
CVE Published:
17 June 2020

What is CVE-2019-20839?

A buffer overflow vulnerability exists in libvncclient/sockets.c within LibVNCServer versions prior to 0.9.13. This flaw can be exploited through a long socket filename, potentially allowing an attacker to execute arbitrary code or cause a denial of service. Users are advised to upgrade to the latest version to mitigate risks related to this vulnerability.

References

https://github.com/LibVNC/libvncserver/compare/LibVNCServ...
x_refsource_MISC
https://github.com/LibVNC/libvncserver/commit/3fd03977c9b...
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020/06/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.