Advisoriesby IbisRed HatCVE-2026-75883
Red Hat pppd. A remote attacker: buffer overflow
No fix yet
A flaw was found in pppd. A remote attacker could exploit a buffer overflow vulnerability in the PEAP response handling. By sending a specially crafted PEAP Request packet, an attacker could cause the pppd process to corrupt global static data, leading to incorrect behavior or a system crash.
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 |
Changes since it was listed
Summary: The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up t to A flaw was found in pppd. A remote attacker could exploit a buffer overflow vulnerability in the PEAP response handling.
Details and references
- CVSS 3.1
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-120