Open mend-for-github-com[bot] opened 2 years ago
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
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CVE-2022-30698 - Medium Severity Vulnerability
Vulnerable Library - src0aecda14650f9fce8577e43d2a403385b5fa5bcf
Public git conversion mirror of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
Library home page: https://github.com/openbsd/src.git
Found in HEAD commit: 250560ac3a6cd973d828db0972dd561343848d2b
Vulnerable Source Files (12)
/usr.sbin/unbound/cachedb/cachedb.c /sbin/unwind/libunbound/dns64/dns64.c /sbin/unwind/libunbound/iterator/iter_utils.c /usr.sbin/unbound/iterator/iterator.c /usr.sbin/unbound/iterator/iterator.c /sbin/unwind/libunbound/dns64/dns64.c /sbin/unwind/libunbound/iterator/iter_utils.c /usr.sbin/unbound/cachedb/cachedb.c /usr.sbin/unbound/ipsecmod/ipsecmod.c /usr.sbin/unbound/daemon/worker.c /usr.sbin/unbound/ipsecmod/ipsecmod.c /usr.sbin/unbound/daemon/worker.c
Vulnerability Details
NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information.
Publish Date: 2022-08-01
URL: CVE-2022-30698
CVSS 3 Score Details (6.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30698
Release Date: 2022-08-01
Fix Resolution: release-1.16.2