CVE-2020-1763

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.
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
redhatCNA
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
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
libreswanlibreswan
3.27 ≤
𝑥
≤ 3.31
libreswanlibreswan
3.5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libreswan
bullseye
4.3-1+deb11u4
fixed
bullseye (security)
4.3-1+deb11u3
fixed
bookworm
4.10-2+deb12u1
fixed
sid
4.14-1.1
fixed
trixie
4.14-1.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libreswan
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
needs-triage
eoan
ignored
bionic
needs-triage
xenial
dne
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1813329
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt
https://security.gentoo.org/glsa/202007-21
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
https://www.debian.org/security/2020/dsa-4684
https://bugzilla.redhat.com/show_bug.cgi?id=1813329
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt
https://security.gentoo.org/glsa/202007-21
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
https://www.debian.org/security/2020/dsa-4684