CVE-2023-3748

EUVD-2023-44383
A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages with the unicast flag set, the interval field set to 0, or any TLV that contains a sub-TLV with the Mandatory flag set to enter an infinite loop and cause a denial of service.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.5 LOW
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
redhatCNA
3.5 LOW
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
Affected Products (NVD)
VendorProductVersion
frroutingfrrouting
𝑥
< 8.5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
frr
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
7.5.1-1.1+deb11u2
not-affected
bullseye (security)
7.5.1-1.1+deb11u3
fixed
buster
not-affected
sid
10.2.1-1
fixed
trixie
10.2.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
frr
bionic
ignored
focal
not-affected
jammy
not-affected
kinetic
ignored
lunar
Fixed 8.4.2-1ubuntu1.2
released
trusty
ignored
xenial
ignored
Common Weakness Enumeration
References
https://access.redhat.com/security/cve/CVE-2023-3748
https://bugzilla.redhat.com/show_bug.cgi?id=2223668
https://access.redhat.com/security/cve/CVE-2023-3748
https://bugzilla.redhat.com/show_bug.cgi?id=2223668