CVE-2019-17596

mediumpriority · track · 42EPSS 0.047 · 92 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

4.69% (92nd) EPSS

CVSS 5 · medium

Is it mine?

85 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Go before 1.12.11 and 1.3.x before 1.13.2 can panic upon an attempt to process network traffic containing an invalid DSA public key. There are several attack scenarios, such as traffic from a client to a server that verifies client certificates.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedcri-o-0:1.16.2-13.dev.rhaos4.3.gita83f883.el7.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedcri-o-0:1.16.2-13.dev.rhaos4.3.gita83f883.el7.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedcri-o-0:1.16.2-15.dev.rhaos4.3.gita83f883.el8.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedcri-o-0:1.16.2-15.dev.rhaos4.3.gita83f883.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-0:4.3.1-202001310552.git.0.331f390.el7.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-0:4.3.1-202001310552.git.0.331f390.el8.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-0:4.3.1-202001310552.git.1.075d46a.el7.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-0:4.3.1-202001310552.git.1.075d46a.el7.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-0:4.3.1-202001310552.git.1.075d46a.el8.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-0:4.3.1-202001310552.git.1.075d46a.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-redistributable-0:4.3.1-202001310552.git.1.075d46a.el7.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-clients-redistributable-0:4.3.1-202001310552.git.1.075d46a.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-hyperkube-0:4.3.1-202001310552.git.0.331f390.el7.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390
Fixedopenshift-hyperkube-0:4.3.1-202001310552.git.0.331f390.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf
Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.1, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHBA-2020:0390

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-436USprimaryCWE-295USCWE-436US

exploits (1)

Public proof-of-concept and weaponised exploit code.

pquerna/poc-dsa-verify-CVE-2019-17596Demonstration of Go's dsa.Verify bug (CVE-2019-17596)PoC · poc_in_github

affected products (85)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Red Hat Developer Toolsetall versionscert_bundDEcpe:/a:redhat:developer_toolset:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
n/a n/a≤ n/aenisa_euvdEU
Novell Inc. OpenSUSE Leap≤ 15.1fstec_bduRU
Novell Inc. OpenSUSE Leap≤ 15.0fstec_bduRU
The Go Project Go1.12 → 1.12.11fstec_bduRU
The Go Project Go1.13 → 1.13.2fstec_bduRU
АО «ИВК» Альт 8 СПall versionsfstec_bduRU
АО «Концерн ВНИИНС» ОС ОН «Стрелец»≤ 16.01.2023fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.1fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 9fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 8fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
arista cloudvision portal2018.1.0 → 2018.2.3nvdUScpe:2.3:a:arista:cloudvision_portal:*:*:*:*:*:*:*:*
arista cloudvision portal= 2019.1.0nvdUScpe:2.3:a:arista:cloudvision_portal:*:*:*:*:*:*:*:*
arista cloudvision portal= 2019.1.1nvdUScpe:2.3:a:arista:cloudvision_portal:*:*:*:*:*:*:*:*
arista cloudvision portal= 2019.1.2nvdUScpe:2.3:a:arista:cloudvision_portal:*:*:*:*:*:*:*:*
arista eos≤ 4.23.1fnvdUScpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*

showing 20 of 85

advisories (3)

Vendor and ecosystem advisories describing this.

RHBA-2020:0390Red Hat Bug Fix Advisory: OpenShift Container Platform 4.3.1 packages update2020-02-12csaf · redhat_csafUS
Red Hat OpenShift Container Platform release 4.3.1 is now available with updates to packages and images that fix several bugs.
WID-SEC-W-2024-1098Red Hat Developer Toolset: Mehrere SchwachstellenDeutsch2020-01-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Developer Toolset ausnutzen, um Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service zu verursachen.
GO-2022-0213Panic on invalid DSA public keys in crypto/dsa2022-05-24vendor · osvUS
Invalid DSA public keys can cause a panic in dsa.Verify. In particular, using crypto/x509.Verify on a crafted X.509 certificate chain can lead to a panic, even if the certificates don't chain to a trusted root. The chain can be delivered via a crypto/tls connection to a client, or to a server that accepts and verifies client certificates. net/http clients can be made to crash by an HTTPS server, while net/http servers that accept client certificates will recover the panic and are unaffected. Moreover, an application might crash invoking crypto/x509.(*CertificateRequest).CheckSignature on an X.509 certificate request, parsing a golang.org/x/crypto/openpgp Entity, or during a golang.org/x/crypto/otr conversation. Finally, a golang.org/x/crypto/ssh client can panic due to a malformed host key, while a server could panic if either PublicKeyCallback accepts a malformed public key, or if IsUserAuthority accepts a certificate with a malformed public key.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd redhat_csaf osv NVD CVE.org MITRE

published 2019-10-24modified 2026-06-17

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references (57)

External citations — patches, advisories, analysis.

scry

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