CVE-2021-39240

EUVD-2021-25602
An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It does not ensure that the scheme and path portions of a URI have the expected characters. For example, the authority field (as observed on a target HTTP/2 server) might differ from what the routing rules were intended to achieve.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
Affected Products (NVD)
VendorProductVersion
haproxyhaproxy
2.2.0 ≤
𝑥
< 2.2.16
haproxyhaproxy
2.3.0 ≤
𝑥
< 2.3.13
haproxyhaproxy
2.4.0 ≤
𝑥
< 2.4.3
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
haproxy
bookworm
2.6.12-1+deb12u1
fixed
bookworm (security)
2.6.12-1+deb12u1
fixed
bullseye
2.2.9-2+deb11u6
fixed
bullseye (security)
2.2.9-2+deb11u6
fixed
buster
not-affected
sid
2.9.11-1
fixed
stretch
not-affected
trixie
2.9.11-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
haproxy
bionic
not-affected
focal
not-affected
hirsute
Fixed 2.2.9-1ubuntu0.1
released
impish
Fixed 2.2.9-2ubuntu1
released
jammy
Fixed 2.2.9-2ubuntu1
released
trusty
dne
xenial
not-affected