CVE-2018-16855

EUVD-2018-8648
An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
redhatCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
Affected Products (NVD)
VendorProductVersion
powerdnsrecursor
𝑥
< 4.1.8
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pdns-recursor
bookworm
4.8.8-1
fixed
bookworm (security)
4.8.8-1
fixed
bullseye
4.4.2-3
fixed
jessie
not-affected
sid
5.0.9-1
fixed
stretch
not-affected
trixie
5.0.9-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pdns-recursor
bionic
needed
cosmic
ignored
disco
Fixed 4.1.8-1
released
eoan
Fixed 4.1.8-1
released
focal
Fixed 4.1.8-1
released
groovy
Fixed 4.1.8-1
released
hirsute
Fixed 4.1.8-1
released
impish
Fixed 4.1.8-1
released
jammy
Fixed 4.1.8-1
released
kinetic
Fixed 4.1.8-1
released
lunar
Fixed 4.1.8-1
released
mantic
Fixed 4.1.8-1
released
noble
Fixed 4.1.8-1
released
trusty
dne
xenial
not-affected
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html