An issue was discovered in sysstat 12.1.1. The remap_struct function in sa_common.c has an out-of-bounds read during a memmove call, as demonstrated by sadf.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-19416 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of sysstat as shipped with Red Hat Enterprise Linux 5, 6, and 7.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | sysstat | Not affected |
| Red Hat Enterprise Linux 6 | sysstat | Not affected |
| Red Hat Enterprise Linux 5 | sysstat | Not affected |
Vulmon