Denial of Service in Synergy (symless synergy-core)
En bref
- Source
- NVD
- EPSS
- EPSS 2.49 % · centile 85 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Modified
Description
In Synergy before version 1.12.0, a Synergy server can be crashed by receiving a kMsgHelloBack packet with a client name length set to 0xffffffff (4294967295) if the servers memory is less than 4 GB. It was verified that this issue does not cause a crash through the exception handler if the available memory of the Server is more than 4GB.
Faiblesses (CWE)
- CWE-755 — Gestion incorrecte des conditions exceptionnelles
- CWE-754 — Vérification incorrecte de conditions inhabituelles ou exceptionnelles
Références
- https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp
- https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VFDEQED64YLWQK2TF73EMXZDYX7YT2DD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAQYCMBWNVCIEM27NPIKK3DGJCNBYLAK/
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2020-7223
- GCVE · GCVE-0-2020-15117
Avis du CERT-FR
- CERTFR-2020-AVI-442 — Multiples vulnérabilités dans IBM Qradar · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:symless:synergy:*:*:*:*:*:*:*:*< 1.12.0cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| symless · synergy-core | affected < 1.12.0 |
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 |