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[SECURITY] [DLA 2910-1] ldns security update

Description

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-2910-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Chris Lamb February 03, 2022 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : ldns Version : 1.7.0-1+deb9u1 CVE IDs : CVE-2020-19860, CVE-2020-19861, CVE-2017-1000231, CVE-2017-1000232 Debian Bugs : #882014, #882015 It was discovered that there were four issues in ldns, a library used in Domain Name System (DNS) related programs: * CVE-2020-19860: When ldns verified a zone file, the ldns_rr_new_frm_str_internal function had a heap out of bounds read vulnerability. An attacker could have potentially leaked information on the heap by constructing a zone file payload. * CVE-2020-19861: When a zone file in ldns was parsed, the function ldns_nsec3_salt_data was too trusting of the length value obtained from the zone file. This could have caused heap overflow information leakage. * CVE-2017-1000231: A double-free vulnerability in parse.c could have resulted in an attack vector. (#882015) * CVE-2017-1000232: A double-free vulnerability within str2host.c could have resulted in an attack vector. (#882014) For Debian 9 "Stretch", these problems have been fixed in version 1.7.0-1+deb9u1. We recommend that you upgrade your ldns packages. For the detailed security status of ldns please refer to its security tracker page at: https://security-tracker.debian.org/tracker/ldns Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS


Affected Package


OS OS Version Package Name Package Version
Debian 7 libldns-dev 1.6.13-1+deb7u2
Debian 7 ldns 1.6.13-1+deb7u2
Debian 9 ldnsutils 1.7.0-1+deb9u1
Debian 9 libldns-dev 1.7.0-1+deb9u1
Debian 7 python-ldns 1.6.13-1+deb7u2
Debian 7 libldns1-dbg 1.6.13-1+deb7u2
Debian 7 libldns1 1.6.13-1+deb7u2
Debian 7 python-ldns 1.6.13-1+deb7u2
Debian 9 ldnsutils 1.7.0-1+deb9u1
Debian 9 libldns2 1.7.0-1+deb9u1
Debian 9 libldns-dev 1.7.0-1+deb9u1
Debian 7 libldns1-dbg 1.6.13-1+deb7u2
Debian 7 python-ldns 1.6.13-1+deb7u2
Debian 7 libldns1-dbg 1.6.13-1+deb7u2
Debian 7 python-ldns 1.6.13-1+deb7u2
Debian 9 ldns 1.7.0-1+deb9u1
Debian 9 libldns2 1.7.0-1+deb9u1
Debian 9 python-ldns 1.7.0-1+deb9u1
Debian 9 libldns2 1.7.0-1+deb9u1
Debian 9 ldnsutils 1.7.0-1+deb9u1
Debian 7 libldns1-dbg 1.6.13-1+deb7u2
Debian 7 libldns-dev 1.6.13-1+deb7u2
Debian 7 libldns1 1.6.13-1+deb7u2
Debian 7 libldns1 1.6.13-1+deb7u2
Debian 7 ldnsutils 1.6.13-1+deb7u2
Debian 7 libldns-dev 1.6.13-1+deb7u2
Debian 9 libldns2 1.7.0-1+deb9u1
Debian 9 libldns-dev 1.7.0-1+deb9u1
Debian 7 libldns1 1.6.13-1+deb7u2
Debian 9 python-ldns 1.7.0-1+deb9u1
Debian 9 python-ldns 1.7.0-1+deb9u1
Debian 9 python-ldns 1.7.0-1+deb9u1
Debian 7 ldnsutils 1.6.13-1+deb7u2
Debian 7 ldnsutils 1.6.13-1+deb7u2
Debian 9 ldnsutils 1.7.0-1+deb9u1
Debian 9 ldnsutils 1.7.0-1+deb9u1
Debian 9 python-ldns 1.7.0-1+deb9u1
Debian 7 ldnsutils 1.6.13-1+deb7u2
Debian 7 libldns-dev 1.6.13-1+deb7u2
Debian 9 libldns2 1.7.0-1+deb9u1
Debian 9 libldns-dev 1.7.0-1+deb9u1
Debian 9 libldns-dev 1.7.0-1+deb9u1

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