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suseSuseOPENSUSE-SU-2021:2760-1
HistoryAug 17, 2021 - 12:00 a.m.

Security update for c-ares (important)

2021-08-1700:00:00
lists.opensuse.org
33

0.002 Low

EPSS

Percentile

52.8%

JSON

An update that fixes one vulnerability is now available.

Description:

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

Patch Instructions:

To install this openSUSE 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:

  • openSUSE Leap 15.3:

    zypper in -t patch openSUSE-SLE-15.3-2021-2760=1

OSVersionArchitecturePackageVersionFilename
openSUSE Leap15.3aarch64< - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):.aarch64.rpm
openSUSE Leap15.3ppc64le< - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):.ppc64le.rpm
openSUSE Leap15.3s390x< - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):.s390x.rpm
openSUSE Leap15.3x86_64< - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):.x86_64.rpm
openSUSE Leap15.3x86_64< - openSUSE Leap 15.3 (x86_64):- openSUSE Leap 15.3 (x86_64):.x86_64.rpm

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0.002 Low

EPSS

Percentile

52.8%

JSON
Related for OPENSUSE-SU-2021:2760-1
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