CVE-2022-2929: falha de média gravidade em ISC DHCP
DHCP memory leak
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.5epss 0.7%
In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
ISC · ISC DHCPCVEs relacionadas — ISC DHCP
No mesmo produto, das mais perigosas para as menos.
CVE-2017-3144MEDIUMFailure to properly clean up closed OMAPI connections can exhaust available socketsEPSS 72.7%CVE-2018-5733MEDIUMA malicious client can overflow a reference counter in ISC dhcpdEPSS 20.2%CVE-2021-25217HIGHA buffer overrun in lease file parsing code can be used to exploit a common vulnerability shared by dhcpd and dhclientEPSS 6.1%CVE-2018-5732HIGHA specially constructed response from a malicious server can cause a buffer overflow in dhclientEPSS 5.2%CVE-2022-2928MEDIUMAn option refcount overflow exists in dhcpdEPSS 0.7%
Referências
https://kb.isc.org/docs/cve-2022-2929https://lists.debian.org/debian-lts-announce/2022/10/msg00015.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SARIK7KZ7MGQIWDRWZFAOSQSPXY4GOU/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQXYCIWUDILRCNBAIMVFCSGXBRKEPB4K/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6IBFH4MRRNJQVWEKILQ6I6CXWW766FX/https://security.gentoo.org/glsa/202305-22