CVE-2017-3158 json
Apache Guacamole Race Condition vulnerability
published 2018-01-18 8 y ago modified 2026-06-17 4 mo ago also GHSA-3vv3-585q-wv6x , EUVD-2022-2246
- cvss
- 8.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.
Patch / fix
- maven org.apache.guacamole:guacamole-common 0.9.11-incubating
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.guacamole:guacamole-common | >=0.9.5, <0.9.11-incubating |
0.9.11-incubating |
Affected products
- Apache Software Foundation Apache Guacamole
Classification
- Weakness
-
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
References
Sources
- CVE List CVE-2017-3158
- GitHub Advisory GHSA-3vv3-585q-wv6x
- NVD CVE-2017-3158
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