SB2026092966 - Multiple vulnerabilities in PUPnP

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: N/A)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to read adjacent heap memory.

The vulnerability exists due to an out-of-bounds read in GetClientSubActualSID when handling crafted GENA NOTIFY SID headers. A remote attacker can send a GENA NOTIFY request containing an oversized SID header to read adjacent heap memory.

A control point must hold an active subscription to the attacker's device.

2) Partial String Comparison (CVE-ID: N/A)

CWE-ID: CWE-187 - Partial String Comparison

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to inject GENA events.

The vulnerability exists due to partial string comparison in GetClientSubActualSID when handling GENA NOTIFY requests containing a shortened SID header. A remote attacker can send a NOTIFY request with a SID that is a prefix of the stored SID to inject GENA events.

Remediation

Install update from vendor's website.

References

• https://github.com/pupnp/pupnp/security/advisories/GHSA-ggw2-jjv9-h22c
• https://github.com/pupnp/pupnp/commit/b17de286