CVE-2021-33195
highpriority · track · 30EPSS 0.032 · 88 %ileDEEURUUSEPSS · scored 2026-10-27
Go before 1.15.13 and 1.16.x before 1.16.5 has functions for DNS lookups that do not validate replies from DNS servers, and thus a return value may contain an unsafe injection (e.g., XSS) that does not conform to the RFC1035 format.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
- netapp cloud insights telegraf agentall versionsnvdUScpe:2.3:a:netapp:cloud_insights_telegraf_agent:*:*:*:*:*:*:*:*
advisories (5)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-0941Red Hat OpenShift: Mehrere SchwachstellenDeutsch2021-08-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um die Integrität und die Verfügbarkeit zu gefährden.
- WID-SEC-W-2023-2229Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2023-08-30csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, einen 'Denial of Service'-Zustand zu verursachen, seine Privilegien zu erweitern und weitere, nicht spezifizierte Auswirkungen zu verursachen.
- WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
- BIT-golang-2021-331952024-03-06vendor · osvUS
Go before 1.15.13 and 1.16.x before 1.16.5 has functions for DNS lookups that do not validate replies from DNS servers, and thus a return value may contain an unsafe injection (e.g., XSS) that does not conform to the RFC1035 format.
- GO-2021-0239Improper sanitization when resolving values from DNS in net2022-02-17vendor · osvUS
The LookupCNAME, LookupSRV, LookupMX, LookupNS, and LookupAddr functions and their respective methods on the Resolver type may return arbitrary values retrieved from DNS which do not follow the established RFC 1035 rules for domain names. If these names are used without further sanitization, for instance unsafely included in HTML, they may allow for injection of unexpected content. Note that LookupTXT may still return arbitrary values that could require sanitization before further use.
also known as (6)
Other names and identifiers for this entity.
- CNNVD-202106-1920cnnvd
- EUVD-2021-19908enisa_euvd
- BDU:2022-01783fstec_bdu
- GHSA-xf7m-5vgf-jhv9enisa_euvd
- BIT-golang-2021-33195osv
- GO-2021-0239osv
sources
Which sources assert this record, and when.
references (74)
External citations — patches, advisories, analysis.
- https://github.com/golang/go/commit/df6a737cc899507d3090e995abd1e1ed1a30cee3Patchcnnvd
- https://groups.google.com/g/golang-announcecnnvd
- https://groups.google.com/g/golang-announce/c/RgCMkAEQjSIcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-33195cnnvd
- https://packetstormsecurity.com/files/163764/Red-Hat-Security-Advisory-2021-2984-01.htmlcnnvd
- https://packetstormsecurity.com/files/163805/Red-Hat-Security-Advisory-2021-3009-01.htmlcnnvd
- https://packetstormsecurity.com/files/163957/Red-Hat-Security-Advisory-2021-3361-01.htmlcnnvd
- https://packetstormsecurity.com/files/164004/Red-Hat-Security-Advisory-2021-3248-01.htmlcnnvd
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