Advisoriesby IbisRed HatCVE-2026-18743
Red Hat popt. This vulnerability: memory corruption
No fix yet
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the poptConfigFileToString function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat OpenShift AI (RHOAI) Product | all versions | No fix yet |
| all versions | No fix yet | |
| all versions | No fix yet | |
| all versions | No fix yet | |
| all versions | No fix yet | |
| popt Product | <= 1.11 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-131