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FS#3585 - critical dnsmasq, dnsmasq-full: remote code execution, cache poisoning, CVE-2020-25681, ... #8625

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openwrt-bot opened this issue Jan 21, 2021 · 0 comments
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levush:

dnsmasq, dnsmasq-full, CVE-2020-25681, CVE-2020-25687, CVE-2020-25684, CVCVE-2020-25685, RCE

dnsmasq, dnsmasq-full are vulnerable to remote code execution and other severe attacks.
dnsmasq in openwrt is below 2.83,
e.g. 2.80 which renders nearly all openwrt-deployments vulnerable.

mitigation:
see
https://www.jsof-tech.com/wp-content/uploads/2021/01/DNSpooq_Technical-Whitepaper.pdf

Page 19:
"
Update your dnsmasq software to the latest version (2.83 or above). This is the best and only complete mitigation.
"

So please
-update dnsmasq and its flavors (-full, etc) asap to higher than 2.83 for all platforms of openwrt.
-notify the users by adding a big notice on the openwrt.org homepage, that they should
update their openwrt deployments.

Thanks in advance.

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