FreeSWITCH: Pre-authentication stack buffer overflow in mod_xml_rpc HTTP directory authentication

Özet

Türkçe özeti henüz hazır değil; şimdilik kaynağın kendi açıklamasını gösteriyoruz.

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, http_directory_auth() rebuilt an expected user@domain:password credential and base64-encoded it into an 80-byte buffer using an encoder without an output-length argument. A configured credential longer than 57 characters overflowed the stack before the supplied HTTP Basic password was compared. An unauthenticated client only needed to name an existing directory user on an exposed mod_xml_rpc HTTP listener; the module is built but not loaded by the stock configuration. The overflow can corrupt the stack and crash FreeSWITCH, ending every active call, although the overrun bytes come from the configured credential and remote code execution has not been demonstrated. This issue is fixed in version 1.11.2.

Etkilenen sürümler1 yazılım

Kaynaklar5 kaynak

• CVE.org kaydı
• NVD kaydı
• github.com/…switch/security/advisories/GHSA-294g-hq4w-c275 Diğer
• github.com/…ommit/0246a16beb416aaaa59edbaf131d80c9d7989aea Diğer
• github.com/signalwire/freeswitch/releases/tag/v1.11.2 Diğer

Kayıt geçmişi

1. 5 Kas 2026 22:21Yayımlandı

İlgili açıklar

• 7,5 CVE-2026-116782FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handling
• 8,2 CVE-2026-116783FreeSWITCH mod_spandsp: out-of-bounds write parsing UDPTL error-recovery data
• 9,1 CVE-2026-116790FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying STUN MESSAGE-INTEGRITY
• 8,2 CVE-2026-116788FreeSWITCH: Pre-authentication heap buffer overflow in core XML empty-entity decoding
• 2,7 CVE-2026-116780FreeSWITCH: Heap out-of-bounds read in FreeSWITCH core variable expansion via `${variable:offset}` slicing
• 7,5 CVE-2026-116784FreeSWITCH: Out-of-bounds read in RTCP NACK feedback parsing