CVE-2023-27537

EUVD-2023-31292
A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 14%
Affected Products (NVD)
VendorProductVersion
haxxlibcurl
7.88.0
haxxlibcurl
7.88.1
netappactive_iq_unified_manager
-
netappclustered_data_ontap
9.0
broadcombrocade_fabric_operating_system_firmware
-
netapph300s_firmware
-
netapph500s_firmware
-
netapph700s_firmware
-
netapph410s_firmware
-
splunkuniversal_forwarder
8.2.0 ≤
𝑥
< 8.2.12
splunkuniversal_forwarder
9.0.0 ≤
𝑥
< 9.0.6
splunkuniversal_forwarder
9.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
curl
bookworm
7.88.1-10+deb12u8
fixed
bookworm (security)
7.88.1-10+deb12u5
fixed
bullseye
7.74.0-1.3+deb11u13
not-affected
bullseye (security)
7.74.0-1.3+deb11u14
fixed
buster
not-affected
sid
8.11.1-1
fixed
trixie
8.11.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
curl
bionic
not-affected
focal
not-affected
jammy
not-affected
kinetic
not-affected
lunar
Fixed 7.88.1-6ubuntu2
released
trusty
not-affected
xenial
not-affected