An unbound security update has been released for Red Hat Enterprise Linux 8.2.
RHSA-2022:0632-01: Moderate: unbound security update
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: unbound security update
Advisory ID: RHSA-2022:0632-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0632
Issue date: 2022-02-22
CVE Names: CVE-2019-25032 CVE-2019-25034 CVE-2019-25035
CVE-2019-25036 CVE-2019-25037 CVE-2019-25038
CVE-2019-25039 CVE-2019-25040 CVE-2019-25041
CVE-2019-25042 CVE-2020-28935
=====================================================================
1. Summary:
An update for unbound is now available for Red Hat Enterprise Linux 8.2
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64
3. Description:
The unbound packages provide a validating, recursive, and caching DNS or
DNSSEC resolver.
Security Fix(es):
* unbound: integer overflow in the regional allocator via regional_alloc
(CVE-2019-25032)
* unbound: integer overflow in sldns_str2wire_dname_buf_origin can lead to
an out-of-bounds write (CVE-2019-25034)
* unbound: out-of-bounds write in sldns_bget_token_par (CVE-2019-25035)
* unbound: assertion failure and denial of service in synth_cname
(CVE-2019-25036)
* unbound: assertion failure and denial of service in dname_pkt_copy via an
invalid packet (CVE-2019-25037)
* unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c
(CVE-2019-25038)
* unbound: integer overflow in a size calculation in respip/respip.c
(CVE-2019-25039)
* unbound: infinite loop via a compressed name in dname_pkt_copy
(CVE-2019-25040)
* unbound: assertion failure via a compressed name in dname_pkt_copy
(CVE-2019-25041)
* unbound: out-of-bounds write via a compressed name in rdata_copy
(CVE-2019-25042)
* unbound: symbolic link traversal when writing PID file (CVE-2020-28935)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed ( https://bugzilla.redhat.com/):
1878761 - CVE-2020-28935 unbound: symbolic link traversal when writing PID file
1954772 - CVE-2019-25032 unbound: integer overflow in the regional allocator via regional_alloc
1954778 - CVE-2019-25034 unbound: integer overflow in sldns_str2wire_dname_buf_origin can lead to an out-of-bounds write
1954780 - CVE-2019-25035 unbound: out-of-bounds write in sldns_bget_token_par
1954782 - CVE-2019-25036 unbound: assertion failure and denial of service in synth_cname
1954794 - CVE-2019-25037 unbound: assertion failure and denial of service in dname_pkt_copy via an invalid packet
1954796 - CVE-2019-25038 unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c
1954797 - CVE-2019-25039 unbound: integer overflow in a size calculation in respip/respip.c
1954799 - CVE-2019-25040 unbound: infinite loop via a compressed name in dname_pkt_copy
1954801 - CVE-2019-25041 unbound: assertion failure via a compressed name in dname_pkt_copy
1954804 - CVE-2019-25042 unbound: out-of-bounds write via a compressed name in rdata_copy
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v. 8.2):
Source:
unbound-1.7.3-12.el8_2.src.rpm
aarch64:
python3-unbound-1.7.3-12.el8_2.aarch64.rpm
python3-unbound-debuginfo-1.7.3-12.el8_2.aarch64.rpm
unbound-1.7.3-12.el8_2.aarch64.rpm
unbound-debuginfo-1.7.3-12.el8_2.aarch64.rpm
unbound-debugsource-1.7.3-12.el8_2.aarch64.rpm
unbound-devel-1.7.3-12.el8_2.aarch64.rpm
unbound-libs-1.7.3-12.el8_2.aarch64.rpm
unbound-libs-debuginfo-1.7.3-12.el8_2.aarch64.rpm
ppc64le:
python3-unbound-1.7.3-12.el8_2.ppc64le.rpm
python3-unbound-debuginfo-1.7.3-12.el8_2.ppc64le.rpm
unbound-1.7.3-12.el8_2.ppc64le.rpm
unbound-debuginfo-1.7.3-12.el8_2.ppc64le.rpm
unbound-debugsource-1.7.3-12.el8_2.ppc64le.rpm
unbound-devel-1.7.3-12.el8_2.ppc64le.rpm
unbound-libs-1.7.3-12.el8_2.ppc64le.rpm
unbound-libs-debuginfo-1.7.3-12.el8_2.ppc64le.rpm
s390x:
python3-unbound-1.7.3-12.el8_2.s390x.rpm
python3-unbound-debuginfo-1.7.3-12.el8_2.s390x.rpm
unbound-1.7.3-12.el8_2.s390x.rpm
unbound-debuginfo-1.7.3-12.el8_2.s390x.rpm
unbound-debugsource-1.7.3-12.el8_2.s390x.rpm
unbound-devel-1.7.3-12.el8_2.s390x.rpm
unbound-libs-1.7.3-12.el8_2.s390x.rpm
unbound-libs-debuginfo-1.7.3-12.el8_2.s390x.rpm
x86_64:
python3-unbound-1.7.3-12.el8_2.x86_64.rpm
python3-unbound-debuginfo-1.7.3-12.el8_2.i686.rpm
python3-unbound-debuginfo-1.7.3-12.el8_2.x86_64.rpm
unbound-1.7.3-12.el8_2.x86_64.rpm
unbound-debuginfo-1.7.3-12.el8_2.i686.rpm
unbound-debuginfo-1.7.3-12.el8_2.x86_64.rpm
unbound-debugsource-1.7.3-12.el8_2.i686.rpm
unbound-debugsource-1.7.3-12.el8_2.x86_64.rpm
unbound-devel-1.7.3-12.el8_2.i686.rpm
unbound-devel-1.7.3-12.el8_2.x86_64.rpm
unbound-libs-1.7.3-12.el8_2.i686.rpm
unbound-libs-1.7.3-12.el8_2.x86_64.rpm
unbound-libs-debuginfo-1.7.3-12.el8_2.i686.rpm
unbound-libs-debuginfo-1.7.3-12.el8_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2019-25032
https://access.redhat.com/security/cve/CVE-2019-25034
https://access.redhat.com/security/cve/CVE-2019-25035
https://access.redhat.com/security/cve/CVE-2019-25036
https://access.redhat.com/security/cve/CVE-2019-25037
https://access.redhat.com/security/cve/CVE-2019-25038
https://access.redhat.com/security/cve/CVE-2019-25039
https://access.redhat.com/security/cve/CVE-2019-25040
https://access.redhat.com/security/cve/CVE-2019-25041
https://access.redhat.com/security/cve/CVE-2019-25042
https://access.redhat.com/security/cve/CVE-2020-28935
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
