Vulnerability Description
A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service that uses c-ares lib. The highest threat from this vulnerability is to this service availability.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| C-Ares | C-Ares | 1.16.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838ExploitIssue TrackingPatch
- https://c-ares.haxx.se/changelog.htmlRelease NotesVendor Advisory
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170ePatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://packetstormsecurity.com/files/158755/GS20200804145053.txtExploitThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838ExploitIssue TrackingPatch
- https://c-ares.haxx.se/changelog.htmlRelease NotesVendor Advisory
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170ePatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://packetstormsecurity.com/files/158755/GS20200804145053.txtExploitThird Party AdvisoryVDB Entry
FAQ
What is CVE-2020-14354?
CVE-2020-14354 is a vulnerability with a CVSS score of 3.3 (LOW). A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service th...
How severe is CVE-2020-14354?
CVE-2020-14354 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14354?
Check the references section above for vendor advisories and patch information. Affected products include: C-Ares C-Ares, Fedoraproject Fedora.