CVE-2017-7521

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 67%
Affected Products (NVD)
VendorProductVersion
openvpnopenvpn
𝑥
≤ 2.3.16
openvpnopenvpn
2.4.0
openvpnopenvpn
2.4.0:alpha2
openvpnopenvpn
2.4.0:beta1
openvpnopenvpn
2.4.0:beta2
openvpnopenvpn
2.4.0:rc1
openvpnopenvpn
2.4.0:rc2
openvpnopenvpn
2.4.1
openvpnopenvpn
2.4.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openvpn
bookworm
2.6.3-1+deb12u2
fixed
bookworm (security)
2.6.3-1+deb12u2
fixed
bullseye
2.5.1-3
fixed
sid
2.6.12-1
fixed
trixie
2.6.12-1
fixed
wheezy
not-affected
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openvpn
artful
Fixed 2.4.0-5ubuntu2
released
trusty
Fixed 2.3.2-7ubuntu3.2
released
xenial
Fixed 2.3.10-1ubuntu2.1
released
yakkety
Fixed 2.3.11-1ubuntu2.1
released
zesty
Fixed 2.4.0-4ubuntu1.3
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
openvpn
suse enterprise desktop 15
2.4.3-3.39
fixed
suse enterprise desktop 15 SP1
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP2
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP3
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise desktop 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise desktop 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise desktop 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise sap 12 SP2
2.3.8-16.17.1
fixed
suse enterprise sap 12 SP5
2.3.8-16.20.1
fixed
suse enterprise sap 15
2.4.3-3.39
fixed
suse enterprise sap 15 SP1
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP2
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP3
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise sap 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise sap 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise sap 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise server 12
2.3.8-16.17.1
fixed
suse enterprise server 12 SP1
2.3.8-16.17.1
fixed
suse enterprise server 12 SP2
2.3.8-16.17.1
fixed
suse enterprise server 12 SP3
2.3.8-16.17.1
fixed
suse enterprise server 12 SP4
2.3.8-16.20.1
fixed
suse enterprise server 12 SP5
2.3.8-16.20.1
fixed
suse enterprise server 15
2.4.3-3.39
fixed
suse enterprise server 15 SP1
2.4.3-5.3.19
fixed
suse enterprise server 15 SP2
2.4.3-5.3.19
fixed
suse enterprise server 15 SP3
2.4.3-5.3.19
fixed
suse enterprise server 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise server 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise server 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise server 15 SP7
2.6.8-150600.3.14.1
fixed
openvpn-auth-pam-plugin
suse enterprise desktop 15
2.4.3-3.39
fixed
suse enterprise desktop 15 SP1
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP2
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP3
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise desktop 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise desktop 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise desktop 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise sap 12 SP2
2.3.8-16.17.1
fixed
suse enterprise sap 12 SP5
2.3.8-16.20.1
fixed
suse enterprise sap 15
2.4.3-3.39
fixed
suse enterprise sap 15 SP1
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP2
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP3
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise sap 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise sap 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise sap 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise server 12
2.3.8-16.17.1
fixed
suse enterprise server 12 SP1
2.3.8-16.17.1
fixed
suse enterprise server 12 SP2
2.3.8-16.17.1
fixed
suse enterprise server 12 SP3
2.3.8-16.17.1
fixed
suse enterprise server 12 SP4
2.3.8-16.20.1
fixed
suse enterprise server 12 SP5
2.3.8-16.20.1
fixed
suse enterprise server 15
2.4.3-3.39
fixed
suse enterprise server 15 SP1
2.4.3-5.3.19
fixed
suse enterprise server 15 SP2
2.4.3-5.3.19
fixed
suse enterprise server 15 SP3
2.4.3-5.3.19
fixed
suse enterprise server 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise server 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise server 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise server 15 SP7
2.6.8-150600.3.14.1
fixed
openvpn-dco
suse enterprise desktop 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise sap 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise server 15 SP7
2.6.8-150600.3.14.1
fixed
openvpn-dco-devel
suse enterprise desktop 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise sap 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise server 15 SP7
2.6.8-150600.3.14.1
fixed
openvpn-devel
suse enterprise desktop 15
2.4.3-3.39
fixed
suse enterprise desktop 15 SP1
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP2
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP3
2.4.3-5.3.19
fixed
suse enterprise desktop 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise desktop 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise desktop 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise desktop 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise sap 15
2.4.3-3.39
fixed
suse enterprise sap 15 SP1
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP2
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP3
2.4.3-5.3.19
fixed
suse enterprise sap 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise sap 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise sap 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise sap 15 SP7
2.6.8-150600.3.14.1
fixed
suse enterprise server 15
2.4.3-3.39
fixed
suse enterprise server 15 SP1
2.4.3-5.3.19
fixed
suse enterprise server 15 SP2
2.4.3-5.3.19
fixed
suse enterprise server 15 SP3
2.4.3-5.3.19
fixed
suse enterprise server 15 SP4
2.5.5-150400.1.5
fixed
suse enterprise server 15 SP5
2.5.6-150400.3.6.1
fixed
suse enterprise server 15 SP6
2.6.8-150600.1.5
fixed
suse enterprise server 15 SP7
2.6.8-150600.3.14.1
fixed