SSA-646763

csafDEsiemens_psirt

SSA-646763: DNSpooq - Dnsmasq Vulnerabilities in SCALANCE and RUGGEDCOM Devices

Advisory ansehen veröffentlicht 2021-01-19

Security researchers discovered and disclosed seven vulnerabilities in the open-source DNS component "dnsmasq", also known as "DNSpooq" vulnerabilities (CVE-2020-25681 through CVE-2020-25687). Three vulnerabilities (CVE-2020-25684 through CVE-2020-25686) affect the validation of DNS responses and impact several SCALANCE and RUGGEDCOM devices as listed below. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not available.

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beschreibt (3)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2020-25686USlow3.7OT erhöhtExploit
A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By def…
CVE-2020-25685USlow3.7—
A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in forward.c:reply_query(), which is the forwarded query that matches t…
CVE-2020-25684USlow3.7—
A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:reply_query() if the reply destination address/port is…
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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Behebungen (30)

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