CVE-2018-20021
N/A
Published: December 19, 2018 at 04:00 PM UTC
Updated: June 17, 2026 at 01:52 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxLibVNCServer
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Severity
N/A
Exploit prediction
EPSS 3%
Description
LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 0.9.12commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c
Affected range stops below 0.9.12, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (12)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing Listx_refsource_MLIST
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.htmlMailing Listx_refsource_MLIST
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/11/msg00033.htmlMailing Listx_refsource_MLIST
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.htmlVendor Advisoryx_refsource_GENTOO
Source: [email protected]
https://security.gentoo.org/glsa/201908-05Vendor Advisoryx_refsource_GENTOO
Source: [email protected]
https://security.gentoo.org/glsa/202006-06Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3877-1/Quick Info
StatusMODIFIED
CWE
CWE-835
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