CVE-2020-5243

uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This has been patched in uap-core 0.7.3.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.7 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 81.79%
Affected Products (NVD)
VendorProductVersion
uap-core_projectuap-core
𝑥
< 0.7.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
uap-core
bookworm
1:0.16.0-1
fixed
bullseye
1:0.12.0-1
fixed
buster
no-dsa
sid
1:0.18.0-1
fixed
trixie
1:0.18.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
uap-core
bionic
dne
eoan
ignored
focal
needed
groovy
ignored
hirsute
ignored
impish
ignored
jammy
needed
kinetic
ignored
lunar
ignored
mantic
ignored
noble
needed
oracular
ignored
plucky
ignored
questing
ignored
resolute
needed
trusty
dne
xenial
dne