CVE-2017-9023

The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 83%
VendorProductVersion
strongswanstrongswan
𝑥
≤ 5.5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
strongswan
bullseye (security)
5.9.1-1+deb11u4
fixed
bullseye
5.9.1-1+deb11u4
fixed
bookworm
5.9.8-5+deb12u1
fixed
bookworm (security)
5.9.8-5+deb12u1
fixed
sid
5.9.13-2
fixed
trixie
5.9.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
strongswan
zesty
Fixed 5.5.1-1ubuntu3.1
released
yakkety
Fixed 5.3.5-1ubuntu4.3
released
xenial
Fixed 5.3.5-1ubuntu3.3
released
trusty
Fixed 5.1.2-0ubuntu2.6
released
Common Weakness Enumeration
References
http://www.debian.org/security/2017/dsa-3866
http://www.securityfocus.com/bid/98756
http://www.ubuntu.com/usn/USN-3301-1
https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html
http://www.debian.org/security/2017/dsa-3866
http://www.securityfocus.com/bid/98756
http://www.ubuntu.com/usn/USN-3301-1
https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html