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Vulnerability details: VCID-a465-1u5b-mugp
Vulnerability ID VCID-a465-1u5b-mugp
Aliases CVE-2019-3836
Summary It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-456 Missing Initialization of a Variable
CWE-824 Access of Uninitialized Pointer
System Score Found at
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3836.json
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2019-3836
cvssv3 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-3836
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-3836
archlinux Critical https://security.archlinux.org/AVG-945
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3836.json
https://api.first.org/data/v1/epss?cve=CVE-2019-3836
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3836
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3836
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://gitlab.com/gnutls/gnutls/issues/704
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/
https://security.gentoo.org/glsa/201904-14
https://security.netapp.com/advisory/ntap-20190502-0005/
1678411 https://bugzilla.redhat.com/show_bug.cgi?id=1678411
ASA-201904-2 https://security.archlinux.org/ASA-201904-2
AVG-945 https://security.archlinux.org/AVG-945
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
CVE-2019-3836 https://nvd.nist.gov/vuln/detail/CVE-2019-3836
RHSA-2019:3600 https://access.redhat.com/errata/RHSA-2019:3600
USN-3999-1 https://usn.ubuntu.com/3999-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3836.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:3.0/AV:N/AC:H/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-2019-3836
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:3.0/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-2019-3836
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 0.64179
EPSS Score 0.00482
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:37.462226+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.20/main.json 37.0.0