CVE-2018-6557
Summary
| CVE | CVE-2018-6557 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-08-21 16:29:00 UTC |
| Updated | 2023-01-18 21:22:00 UTC |
| Description | The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled. |
Risk And Classification
Problem Types: CWE-59
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Base-files Project | Base-files | 10.1ubuntu2.2 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.10 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.10 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Malformed Request | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| USN-3748-1: base-files vulnerability | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Vendor Advisory |
| Debian Linux MOTD Update Script Unsafe Temporary File Usage Lets Local Users Deny Service and Gain Elevated Privileges - SecurityTracker | SECTRACK | www.securitytracker.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Sander Bos
There are currently no legacy QID mappings associated with this CVE.