CVE-2019-15691
High
Description
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.
SeverityHigh
CVSS7.2
Exploit probability—
ProductTigervnc
PublishedDec 26, 2019
First seenDec 26, 2019
Weakness typeCWE-825CWE-825
How to fix
Update
- tigervnc tigervnc1.10.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tigervnc tigervnc | v < 1.10.1 | 1.10.1 |
| opensuse leap | 15.1 | — |
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