Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.048
EPSS Ranking 89.0%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
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
Products affected by CVE-2020-1763
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cpe:2.3:a:libreswan:libreswan:3.27
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cpe:2.3:a:libreswan:libreswan:3.28
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cpe:2.3:a:libreswan:libreswan:3.29
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cpe:2.3:a:libreswan:libreswan:3.31
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cpe:2.3:a:libreswan:libreswan:3.5