CVE-2020-15117 Denial of Service in Synergy

2020-07-1517:25:14

CWE-755

GitHub_M

www.cve.org

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.003 Low

EPSS

Percentile

71.2%

JSON

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.

CNA Affected

[
  {
    "product": "synergy-core",
    "vendor": "symless",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.12.0"
      }
    ]
  }
]