[openSUSE-SU-2021:1168-1] Security update for c-ares

Severity Important
Affected Packages 7
CVEs 1

Security update for c-ares

This update for c-ares fixes the following issues:

Version update to git snapshot 1.17.1+20200724:

  • CVE-2021-3672: fixed missing input validation on hostnames returned by DNS servers (bsc#1188881)
  • If ares_getaddrinfo() was terminated by an ares_destroy(), it would cause crash
  • Crash in sortaddrinfo() if the list size equals 0 due to an unexpected DNS response
  • Expand number of escaped characters in DNS replies as per RFC1035 5.1 to prevent spoofing
  • Use unbuffered /dev/urandom for random data to prevent early startup performance issues

This update was imported from the SUSE:SLE-15:Update update project.

Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:rpm/opensuse/libcares2?arch=x86_64&distro=opensuse-leap-15.2 opensuse libcares2 < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 x86_64
Affected pkg:rpm/opensuse/libcares2?arch=i586&distro=opensuse-leap-15.2 opensuse libcares2 < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 i586
Affected pkg:rpm/opensuse/libcares2-32bit?arch=x86_64&distro=opensuse-leap-15.2 opensuse libcares2-32bit < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 x86_64
Affected pkg:rpm/opensuse/c-ares-utils?arch=x86_64&distro=opensuse-leap-15.2 opensuse c-ares-utils < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 x86_64
Affected pkg:rpm/opensuse/c-ares-utils?arch=i586&distro=opensuse-leap-15.2 opensuse c-ares-utils < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 i586
Affected pkg:rpm/opensuse/c-ares-devel?arch=x86_64&distro=opensuse-leap-15.2 opensuse c-ares-devel < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 x86_64
Affected pkg:rpm/opensuse/c-ares-devel?arch=i586&distro=opensuse-leap-15.2 opensuse c-ares-devel < 1.17.1+20200724-lp152.2.9.1 opensuse-leap-15.2 i586
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date
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