Due to incorrect accounting when decoding and escaping Unicode data in procfs, ps is vulnerable to overflowing an mmap()ed region when formatting the process list for display. Since ps maps a guard page at the end of the buffer, impact is limited to a crash.
Find out more about CVE-2018-1123 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 3.9 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | Low |
Availability Impact | Low |
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 7 | procps-ng | Affected |
Red Hat Enterprise Linux 6 | procps | Affected |
Red Hat Enterprise Linux 5 | procps | Will not fix |