CVE-2019-15691

HIGH7.2

TigerVNC version prior to 1

Published Dec 26, 2019

Modified 1 years ago

Details

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.

References

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html

WEB

https://github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40

WEB

https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2019-15691

WEB

https://www.openwall.com/lists/oss-security/2019/12/20/2

CVSS Analysis