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Vulnerability details: VCID-58u6-hetu-aaac
Vulnerability ID VCID-58u6-hetu-aaac
Aliases CVE-2019-20839
Summary libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-20839.html
rhas Moderate https://access.redhat.com/errata/RHSA-2021:1811
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20839.json
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03534 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.03896 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
epss 0.05144 https://api.first.org/data/v1/epss?cve=CVE-2019-20839
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1849877
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20839
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Medium https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-20839
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-20839
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-20839
generic_textual Medium https://ubuntu.com/security/notices/USN-4434-1
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-20839.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20839.json
https://api.first.org/data/v1/epss?cve=CVE-2019-20839
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20839
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/LibVNC/libvncserver/commit/3fd03977c9b35800d73a865f167338cb4d05b0c1
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
https://ubuntu.com/security/notices/USN-4434-1
https://usn.ubuntu.com/4434-1/
1849877 https://bugzilla.redhat.com/show_bug.cgi?id=1849877
cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
CVE-2019-20839 https://nvd.nist.gov/vuln/detail/CVE-2019-20839
RHSA-2021:1811 https://access.redhat.com/errata/RHSA-2021:1811
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20839.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-20839
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-20839
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-20839
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.78198
EPSS Score 0.00595
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.