CVE-2019-15691
CVSS v3
7.2
HIGH
EPSS Score
3.9 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-12-26
Frequently asked questions
What is CVE-2019-15691?
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.
Is CVE-2019-15691 actively exploited?
Active exploitation of CVE-2019-15691 has not been confirmed. The EPSS score is 3.9%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-15691?
CVE-2019-15691 has a CVSS v3 base score of 7.2 (HIGH severity).
Is CVE-2019-15691 affecting your environment?
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