CVE-2023-31470

SmartDNS through 41 before 56d0332 allows an out-of-bounds write because of a stack-based buffer overflow in the _dns_encode_domain function in the dns.c file, via a crafted DNS request.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 47%
VendorProductVersion
pymumusmartdns
𝑥
≤ 41
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
smartdns
oracular
needs-triage
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
focal
dne
bionic
dne
xenial
ignored
trusty
ignored
Common Weakness Enumeration
References
https://github.com/pymumu/smartdns/commit/56d0332bf91104cfc877635f6c82e9348587df04
https://github.com/pymumu/smartdns/issues/1378
https://github.com/pymumu/smartdns/commit/56d0332bf91104cfc877635f6c82e9348587df04
https://github.com/pymumu/smartdns/issues/1378