The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1853 advisory.

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 8 : unbound (RHSA-2021:1853)

critical Nessus Plugin ID 149675

Version 1.10

Version 1.9

Version 1.8

Version 1.7

Version 1.10 Nov 7, 2024, 5:39 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411070539
Version 1.9 Jun 3, 2024, 7:01 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202406031901
Version 1.8 May 25, 2023, 12:55 AM Logic Changes (Added support for ppc64le architecture) Plugin Feed: 202305250055
Version 1.7 Jan 23, 2023, 7:12 PM Logic Changes (Added support for repository relative URLs) Plugin Feed: 202301231912