CVE-2018-15686 systemd: reexec state injection: fgets() on overlong lines leads to line splitting

2018-10-2500:00:00

canonical

www.cve.org

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

62.3%

JSON

A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.

CNA Affected

[
  {
    "product": "systemd",
    "vendor": "systemd",
    "versions": [
      {
        "lessThanOrEqual": "239",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]