CVE-2020-1763
the libreswan Project libreswan
HIGH 7.5
At a glance
- Source
- NVD
- EPSS
- EPSS 3.57 % · percentile 89 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763
- https://bugzilla.redhat.com/show_bug.cgi?id=1813329
- https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8
- https://www.debian.org/security/2020/dsa-4684
- https://security.gentoo.org/glsa/202007-21
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-12590
- GCVE · GCVE-0-2020-1763
CERT-FR advisories
- CERTFR-2021-AVI-094 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:*≥ 3.27 ≤ 3.31cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| the libreswan Project · libreswan | affected from versions 3.27 till 3.31 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |