Vulnerability Details CVE-2020-15117
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.7%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.0
References
- https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39
- https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp
- 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/
- https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39
- https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp
- 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/
Products affected by CVE-2020-15117
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cpe:2.3:a:symless:synergy:1.10.0
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cpe:2.3:a:symless:synergy:1.10.1
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cpe:2.3:a:symless:synergy:1.10.2
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cpe:2.3:a:symless:synergy:1.10.3
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cpe:2.3:a:symless:synergy:1.11.0
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cpe:2.3:a:symless:synergy:1.11.1
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cpe:2.3:a:symless:synergy:1.8.8
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cpe:2.3:a:symless:synergy:1.9.0
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cpe:2.3:a:symless:synergy:1.9.1
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cpe:2.3:o:fedoraproject:fedora:32
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cpe:2.3:o:fedoraproject:fedora:33