drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in bind9
Name: |
Mehrere Probleme in bind9 |
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ID: |
DSA-5235-1 |
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Distribution: |
Debian |
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Plattformen: |
Debian bullseye |
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Datum: |
Do, 22. September 2022, 21:53 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3080
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2795
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-38177
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-38178 |
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Applikationen: |
BIND |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
- ------------------------------------------------------------------------- Debian Security Advisory DSA-5235-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso September 22, 2022 https://www.debian.org/security/faq - -------------------------------------------------------------------------
Package : bind9 CVE ID : CVE-2022-2795 CVE-2022-3080 CVE-2022-38177 CVE-2022-38178
Several vulnerabilities were discovered in BIND, a DNS server implementation.
CVE-2022-2795
Yehuda Afek, Anat Bremler-Barr and Shani Stajnrod discovered that a flaw in the resolver code can cause named to spend excessive amounts of time on processing large delegations, significantly degrade resolver performance and result in denial of service.
CVE-2022-3080
Maksym Odinintsev discovered that the resolver can crash when stale cache and stale answers are enabled with a zero stale-answer-timeout. A remote attacker can take advantage of this flaw to cause a denial of service (daemon crash) via specially crafted queries to the resolver.
CVE-2022-38177
It was discovered that the DNSSEC verification code for the ECDSA algorithm is susceptible to a memory leak flaw. A remote attacker can take advantage of this flaw to cause BIND to consume resources, resulting in a denial of service.
CVE-2022-38178
It was discovered that the DNSSEC verification code for the EdDSA algorithm is susceptible to a memory leak flaw. A remote attacker can take advantage of this flaw to cause BIND to consume resources, resulting in a denial of service.
For the stable distribution (bullseye), these problems have been fixed in version 1:9.16.33-1~deb11u1.
We recommend that you upgrade your bind9 packages.
For the detailed security status of bind9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/bind9
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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