Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.0420
dnsmasq security update
5 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: dnsmasq
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25687 CVE-2020-25686 CVE-2020-25685
CVE-2020-25684 CVE-2020-25683 CVE-2020-25682
CVE-2020-25681
Reference: ESB-2021.0408
ESB-2021.0407
ESB-2021.0402
ESB-2021.0283
Original Bulletin:
http://www.debian.org/security/2021/dsa-4844
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Debian Security Advisory DSA-4844-1 security@debian.org
https://www.debian.org/security/ Sebastien Delafond
February 02, 2021 https://www.debian.org/security/faq
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Package : dnsmasq
CVE ID : CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684
CVE-2020-25685 CVE-2020-25686 CVE-2020-25687
Moshe Kol and Shlomi Oberman of JSOF discovered several
vulnerabilities in dnsmasq, a small caching DNS proxy and DHCP/TFTP
server. They could result in denial of service, cache poisoning or the
execution of arbitrary code.
For the stable distribution (buster), these problems have been fixed in
version 2.80-1+deb10u1.
We recommend that you upgrade your dnsmasq packages.
For the detailed security status of dnsmasq please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/dnsmasq
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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