diff options
| author | Matthias Andree <mandree@FreeBSD.org> | 2024-02-14 00:12:14 +0100 |
|---|---|---|
| committer | Matthias Andree <mandree@FreeBSD.org> | 2024-02-14 00:13:16 +0100 |
| commit | 58e048cad653819eebf91af5840e4b00f155bb1b (patch) | |
| tree | 733b9475724bd1f7fc2641a6c98efdfa6ad21c11 | |
| parent | ce055d83ec593e72ce26315e79996d46a15c8e32 (diff) | |
| download | freebsd-ports-58e048cad653819eebf91af5840e4b00f155bb1b.zip | |
security/vuxml: document dnssec validating resolver DoS vuln...
for Bind9, dnsmasq, PowerDNS, Unbound.
Security: 21a854cc-cac1-11ee-b7a7-353f1e043d9a
Security: CVE-2023-50387
Security: CVE-2023-50868
| -rw-r--r-- | security/vuxml/vuln/2024.xml | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/security/vuxml/vuln/2024.xml b/security/vuxml/vuln/2024.xml index 5ce1aa06740f..e9571ce9674b 100644 --- a/security/vuxml/vuln/2024.xml +++ b/security/vuxml/vuln/2024.xml @@ -1,3 +1,77 @@ + <vuln vid="21a854cc-cac1-11ee-b7a7-353f1e043d9a"> + <topic>DNSSEC validators -- denial-of-service/CPU exhaustion from KeyTrap and NSEC3 vulnerabilities</topic> + <affects> + <package> + <name>bind916</name> + <range><lt>9.16.48</lt></range> + </package> + <package> + <name>bind918</name> + <range><lt>9.18.24</lt></range> + </package> + <package> + <name>bind9-devel</name> + <range><lt>9.19.21</lt></range> + </package> + <package> + <name>dnsmasq</name> + <range><lt>2.90</lt></range> + </package> + <package> + <name>dnsmasq-devel</name> + <range><lt>2.90</lt></range> + </package> + <package> + <name>powerdns-recursor</name> + <range><lt>5.0.2</lt></range> + </package> + <package> + <name>unbound</name> + <range><lt>1.19.1</lt></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml"> + <p>Simon Kelley reports:</p> + <blockquote cite="https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"> + <p>If DNSSEC validation is enabled, then an attacker who can force a + DNS server to validate a specially crafted signed domain can use a + lot of CPU in the validator. This only affects dnsmasq installations + with DNSSEC enabled.</p> + </blockquote> + <p>Stichting NLnet Labs reports:</p> + <blockquote cite="https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"> + <p> + The KeyTrap [CVE-2023-50387] vulnerability works by using a + combination of Keys (also colliding Keys), Signatures and number of + RRSETs on a malicious zone. Answers from that zone can force a + DNSSEC validator down a very CPU intensive and time costly + validation path. + </p> + <p> + The NSEC3 [CVE-2023-50868] vulnerability uses specially crafted responses on a + malicious zone with multiple NSEC3 RRSETs to force a DNSSEC + validator down a very CPU intensive and time costly NSEC3 hash + calculation path. + </p> + </blockquote> + </body> + </description> + <references> + <cvename>CVE-2023-50387</cvename> + <cvename>CVE-2023-50868</cvename> + <url>https://kb.isc.org/docs/cve-2023-50387</url> + <url>https://kb.isc.org/docs/cve-2023-50868</url> + <url>https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html</url> + <url>https://blog.powerdns.com/2024/02/13/powerdns-recursor-4-8-6-4-9-3-5-0-2-released</url> + <url>https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/</url> + </references> + <dates> + <discovery>2024-02-06</discovery> + <entry>2024-02-13</entry> + </dates> + </vuln> + <vuln vid="cbfc1591-c8c0-11ee-b45a-589cfc0f81b0"> <topic>phpmyfaq -- multiple vulnerabilities</topic> <affects> |