UBUNTU-CVE-2020-24698: pdns Ubuntu
CVSS: 9.8v3.1CriticalPublished
Published 02-10-2020Last modified 04-02-2026
Vulnerability summary
UBUNTU-CVE-2020-24698 is a critical (CVSS 9.8) vulnerability in pdns Ubuntu.
CVSS score
9.8/10
010
Critical · v3.1 (OSV · Ubuntu), selected by version preferenceEPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 02-10-2020PublishedVulnerability first disclosed.
- 04-02-2026Last modifiedVulnerability information updated.
Description
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker might be able to cause a double-free, leading to a crash or possibly arbitrary code execution. by sending crafted queries with a GSS-TSIG signature.
CVSS metrics
1 score · 1 source · 1 versionCritical 9.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu1 product
- pdnsAll versions (No fix recorded)
1 vendor · 1 product