CVE-2022-38177: falha de alta gravidade em ISC BIND9
Memory leak in ECDSA DNSSEC verification code
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 3.3%
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
ISC · BIND9CVEs relacionadas — ISC BIND9
No mesmo produto, das mais perigosas para as menos.
CVE-2020-8617HIGHA logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.cEPSS 93.3%CVE-2021-25216HIGHA second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attackEPSS 83.0%CVE-2020-8625HIGHA vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attackEPSS 64.2%CVE-2021-25215HIGHAn assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itselfEPSS 11.7%CVE-2021-25219MEDIUMLame cache can be abused to severely degrade resolver performanceEPSS 11.2%CVE-2020-8616HIGHBIND does not sufficiently limit the number of fetches performed when processing referralsEPSS 10.9%
Referências
https://kb.isc.org/docs/cve-2022-38177https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/https://security.gentoo.org/glsa/202210-25https://security.netapp.com/advisory/ntap-20221228-0010/https://www.debian.org/security/2022/dsa-5235http://www.openwall.com/lists/oss-security/2022/09/21/3