CVE-2019-15691

7.2HIGH

Key Information:

Vendor
Kaspersky
Status
Tigervnc
Vendor
CVE Published:
26 December 2019

Summary

TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

Affected Version(s)

TigerVNC 1.10.0

References

https://github.com/CendioOssman/tigervnc/commit/d61a767d6...
x_refsource_MISC
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2019/12/20/2
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.