UbuntuUSN-6168-2libx11 vulnerability
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.5%
Releases
- Ubuntu 18.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Packages
- libx11 - X11 client-side library
Details
USN-6168-1 fixed a vulnerability in libx11. This update provides
the corresponding update for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM,
and Ubuntu 18.04 ESM.
Original advisory details:
Gregory James Duck discovered that libx11 incorrectly handled certain
Request, Event, or Error IDs. If a user were tricked into connecting to a
malicious X Server, a remote attacker could possibly use this issue to
cause libx11 to crash, resulting in a denial of service.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 18.04 | noarch | libx11-6 | < 2:1.6.4-3ubuntu0.4+esm1 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-6 | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-6-dbgsym | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-6-udeb | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-data | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-dev | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-doc | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-xcb-dev | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-xcb1 | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libx11-xcb1-dbgsym | < 2:1.6.4-3ubuntu0.4 | UNKNOWN |
References
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.5%