CVE-2024-31951

EUVD-2024-29809
In the Opaque LSA Extended Link parser in FRRouting (FRR) through 9.1, there can be a buffer overflow and daemon crash in ospf_te_parse_ext_link for OSPF LSA packets during an attempt to read Segment Routing Adjacency SID subTLVs (lengths are not validated).
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
Affected Products (NVD)
VendorProductVersion
frroutingfrrouting
𝑥
≤ 9.1
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+deb11u4
fixed
buster
not-affected
forky
10.5.0-1
fixed
sid
10.5.0-1
fixed
trixie
10.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
frr
focal
not-affected
jammy
Fixed 8.1-1ubuntu1.10
released
mantic
Fixed 8.4.4-1.1ubuntu1.4
released
noble
Fixed 8.4.4-1.1ubuntu6.1
released
quagga
bionic
not-affected
focal
not-affected
jammy
dne
mantic
dne
noble
dne
xenial
not-affected
Common Weakness Enumeration
References
https://github.com/FRRouting/frr/pull/15674/
https://github.com/FRRouting/frr/pull/15674/commits/344fb4be2bc27316c74b17003c05ea40be395836
https://github.com/FRRouting/frr/pull/15674/
https://github.com/FRRouting/frr/pull/15674/commits/344fb4be2bc27316c74b17003c05ea40be395836