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CVE-2019-15681

HIGHCVSS 7.5/10EPSS 3.35%

Last modified

CVE-2019-15681 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. EPSS estimates a 3.35% chance of exploitation in the next 30 days.

Description

LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
3.35%

87.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Libvnc ProjectLibvncserver< 0.9.12
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux18.10
DebianDebian Linux8.0
DebianDebian Linux9.0
SiemensSimatic Itc1500 Firmware>= 3.0.0.0, < 3.2.1.0
SiemensSimatic Itc1500 Pro Firmware>= 3.0.0.0, < 3.2.1.0
SiemensSimatic Itc1900 Firmware>= 3.0.0.0, < 3.2.1.0
SiemensSimatic Itc1900 Pro Firmware>= 3.0.0.0, < 3.2.1.0
SiemensSimatic Itc2200 Firmware>= 3.0.0.0, < 3.2.1.0
SiemensSimatic Itc2200 Pro Firmware>= 3.0.0.0, < 3.2.1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-15681?
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
How severe is CVE-2019-15681?
CVE-2019-15681 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.35% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15681?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15681?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST