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SUSE 2021:14604-1 Important: dnsmasq Heap-Based Overflows and Attacks

suse
Calendar Grey January 19, 2021
Dist Suse Esm H88
Essential SUSE upgrade for dnsmasq tackles significant rating concerns and resolves various security flaws. Keep your systems safe!
An update that fixes 7 vulnerabilities is now available

Summary

This update for dnsmasq fixes the following issues: Security issues fixed: - CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks (bsc#1177077). - CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when DNSSEC is enabled (bsc#1177077). Non-security issue fixed: - Retry query to other servers on receipt of SERVFAIL rcode (bsc#1176076). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-dnsmasq-14604=1 - SUSE Linux Enterprise Debuginfo 11-SP3:

Topics%20covered

Topics Covered

security advisory heap overflow cache poisoning dnsmasq important rating

References

#1176076 #1177077

Cross- CVE-2020-25681 CVE-2020-25682 CVE-2020-25683

CVE-2020-25684 CVE-2020-25685 CVE-2020-25686

CVE-2020-25687

Affected Products:

SUSE Linux Enterprise Point of Sale 11-SP3

SUSE Linux Enterprise Debuginfo 11-SP3

https://www.suse.com/security/cve/CVE-2020-25681.html

https://www.suse.com/security/cve/CVE-2020-25682.html

https://www.suse.com/security/cve/CVE-2020-25683.html

https://www.suse.com/security/cve/CVE-2020-25684.html

https://www.suse.com/security/cve/CVE-2020-25685.html

https://www.suse.com/security/cve/CVE-2020-25686.html

https://www.suse.com/security/cve/CVE-2020-25687.html

https://bugzilla.suse.com/1176076

https://bugzilla.suse.com/1177077

Severity
important
Lowest
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Medium
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Critical

Announcement ID: SUSE-SU-2021:14604-1
Rating: important

Topics%20covered

Topics Covered

security advisory heap overflow cache poisoning dnsmasq important rating

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