CVE-2018-7548 In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
CriticalCVSS 9.8
EPSS 2.5%
- Published
- Updated
- Exploit status
- No public exploit known
Description
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/zsh(Debian:12) | < 5.5-1 | 5.5-1 |
| debian/zsh(Debian:13) | < 5.5-1 | 5.5-1 |
| debian/zsh(Debian:14) | < 5.5-1 | 5.5-1 |
| zsh | <= 5.4.2 | No fix listed |
| Canonical Ubuntu Linux | = 17.10 | No fix listed |
References
- Debian Security Tracker CVE-2018-7548 vendor-advisory
- GLSA-201805-10 third-party-advisory vendor-advisory
- sourceforge.net patch third-party-advisory
- USN-3593-1 third-party-advisory vendor-advisory