VulnerabilityModified
CVE-2019-15680
TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS).
HIGH 7.5EPSS 2.67%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.67% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- tightvnc/tightvnc
- Source
- vulnerability@kaspersky.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf
- https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08
- https://usn.ubuntu.com/4407-1/
- https://www.openwall.com/lists/oss-security/2018/12/10/5Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf
- https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08
- https://usn.ubuntu.com/4407-1/
- https://www.openwall.com/lists/oss-security/2018/12/10/5Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.