CVE-2018-15856
libxkbcommon: Infinite loop when reaching EOL unexpectedly resulting in a crash
Severity Score
5.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.
Un bucle infinito al alcanzar EOL inesperadamente en compose/parser.c (también conocido como analizador keymap) en xkbcommon, en versiones anteriores a la 0.8.1, podría ser empleado por atacantes locales para provocar una denegación de servicio (DoS) durante el análisis de archivos keymap manipulados.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-08-24 CVE Reserved
- 2018-08-25 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
References (8)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:2079 | 2019-10-03 | |
| https://security.gentoo.org/glsa/201810-05 | 2019-10-03 | |
| https://usn.ubuntu.com/3786-1 | 2019-10-03 | |
| https://usn.ubuntu.com/3786-2 | 2019-10-03 | |
| https://access.redhat.com/security/cve/CVE-2018-15856 | 2019-08-06 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1623018 | 2019-08-06 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Xkbcommon Search vendor "Xkbcommon" | Xkbcommon Search vendor "Xkbcommon" for product "Xkbcommon" | < 0.8.1 Search vendor "Xkbcommon" for product "Xkbcommon" and version " < 0.8.1" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||