c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_name_parse() enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain...
Product
azure linux c-ares vulnerabilities
2 published CVES affecting azure linux c-ares, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 2
- Critical
- 0
- High
- 1
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest azure linux c-ares CVEs
Newest publication first
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HighCVSS 7.5 EPSS 0.48%
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MediumCVSS 5.3 EPSS 0.38%
c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_parse() trusts the attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT fields before confirming that the DNS response contains enough bytes for the claimed records. Because process_answer() invokes parsing before...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.