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.
Products affected by CVE-2020-15117
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:symless:synergy:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15117
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15117
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2020-15117
-
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.Assigned by: nvd@nist.gov (Primary)
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2020-15117
-
https://github.com/symless/synergy-core/commit/0a97c2be0da2d0df25cb86dfd642429e7a8bea39
Merge pull request from GHSA-chfm-333q-gfpp · symless/synergy-core@0a97c2b · GitHubPatch;Third Party Advisory
-
https://github.com/symless/synergy-core/security/advisories/GHSA-chfm-333q-gfpp
Denial of Service / Crash of synergys · Advisory · symless/synergy-core · GitHubThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VFDEQED64YLWQK2TF73EMXZDYX7YT2DD/
[SECURITY] Fedora 33 Update: synergy-1.12.0-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAQYCMBWNVCIEM27NPIKK3DGJCNBYLAK/
[SECURITY] Fedora 32 Update: synergy-1.12.0-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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