CVE-2020-22217: Buffer Overflow
First published: Tue Aug 22 2023(Updated: )
Buffer overflow vulnerability in c-ares before 1_16_1 thru 1_17_0 via function ares_parse_soa_reply in ares_parse_soa_reply.c.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| C-ares C-ares | =1.16.1 | |
| C-ares C-ares | =1.17.0 | |
| ubuntu/c-ares | <1.15.0-1ubuntu0.4 | 1.15.0-1ubuntu0.4 |
| Debian Debian Linux | =10.0 | |
| redhat/c-ares | <1.17.0 | 1.17.0 |
| debian/c-ares | <=1.14.0-1+deb10u1 | 1.14.0-1+deb10u4 1.17.1-1+deb11u3 1.18.1-3 1.27.0-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/c-ares/c-ares/issues/333
- https://lists.debian.org/debian-lts-announce/2023/09/msg00014.html
- https://launchpad.net/bugs/cve/CVE-2020-22217
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2235804
- https://access.redhat.com/errata/RHSA-2023:7207
- https://access.redhat.com/errata/RHSA-2024:0419
- https://access.redhat.com/errata/RHSA-2024:0578
- https://bugzilla.redhat.com/show_bug.cgi?id=2235527
- https://github.com/c-ares/c-ares/pull/332
- https://github.com/c-ares/c-ares/commit/1b98172b141fe874ad43e679e67506f9b2139043
- https://security-tracker.debian.org/tracker/CVE-2020-22217
- https://ubuntu.com/security/notices/USN-6376-1
- https://www.cve.org/CVERecord?id=CVE-2020-22217
- https://nvd.nist.gov/vuln/detail/CVE-2020-22217
- https://ubuntu.com/security/CVE-2020-22217
Frequently Asked Questions
What is CVE-2020-22217?
CVE-2020-22217 is a buffer overflow vulnerability in c-ares, specifically in the function ares_parse_soa_reply.
How severe is CVE-2020-22217?
CVE-2020-22217 has a severity rating of 9.8 (Critical).
Which versions of c-ares are affected by CVE-2020-22217?
Versions c-ares 1.16.1 through 1.17.0 are affected by CVE-2020-22217.
How can I fix CVE-2020-22217?
To fix CVE-2020-22217, update c-ares to version 1.17.1-1+deb11u2 or later.
Where can I find more information about CVE-2020-22217?
You can find more information about CVE-2020-22217 on the GitHub issue page and the Debian LTS announcement.
- collector/nvd-api
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/first-publish-date
- agent/severity
- agent/remedy
- agent/weakness
- agent/author
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-22217
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/tags
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- vendor/c-ares
- canonical/c-ares c-ares
- version/c-ares c-ares/1.16.1
- version/c-ares c-ares/1.17.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- package-manager/redhat
- package-manager/debian
- package-manager/ubuntu