CVE-2018-1100
A buffer overflow flaw was found in the zsh shell check path functionality. A local, unprivileged user can create a specially crafted message file, which, if used to set a custom "you have new mail" message, leads to code execution in the context of the user who receives the message. If the user affected is privileged, this leads to privilege escalation.
Find out more about CVE-2018-1100 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v3 metrics
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | Required |
| Scope | Changed |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (zsh) | RHSA-2018:1932 | 2018-06-19 |
| Red Hat Enterprise Linux 7 (zsh) | RHSA-2018:3073 | 2018-10-30 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 5 | zsh | Will not fix |
