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CVE-2020-24696

Date: October 2, 2020

An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can trigger a race condition leading to a crash, or possibly arbitrary code execution, by sending crafted queries with a GSS-TSIG signature.

Language: C++

Severity Score

Related Resources (5)

https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-06.html
https://nvd.nist.gov/vuln/detail/CVE-2020-24696
https://security-tracker.debian.org/tracker/CVE-2020-24696
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-24696
https://www.mend.io/vulnerability-database/CVE-2020-24696

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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