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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39	Patch Third Party Advisory
https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp	Third Party Advisory
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/

Configurations

Configuration 1 (hide)

cpe:2.3:a:symless:synergy:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:32:::::::*
	cpe:2.3:o:fedoraproject:fedora:33:::::::*

History

No history.

Information

Published : 2020-07-15 18:15

Updated : 2023-11-07 03:17

NVD link : CVE-2020-15117

Mitre link : CVE-2020-15117

CVE.ORG link : CVE-2020-15117

JSON object : View

Products Affected

fedoraproject

fedora

symless

synergy

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

CWE-755

Improper Handling of Exceptional Conditions

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