htb-machine-ringdown

htb-machine-ringdown Detailed design & exploitation writeup for Ringdown—an original Debian/Asterisk vulnerable machine featuring CVE-2024-42365 AMI, PJSIP pre-hash cracking, and Fail2ban POSIX ACL privilege escalation...

BC-WHY-NOT-LEARN-NEW-STUFF-

BC-WHY-NOT-LEARN-NEW-STUFF- HACKING SIP/PJSIP crash remote asterisk instances : https://github.com/asterisk/asterisk/security/advisories/GHSA-v428-g3cw-7hv9...

cve-2026-25994_PJSIP

CVE-2026-25994 – PJNATH ICE Stack Buffer Overflow pjsip ≤ 2.16 Overview CVE-2026-25994 is a stack-based buffer overflow vulnerability affecting the ICE Interactive Connectivity Establishment implementation in pjsip ≤ 2.16, specifically within the PJNATH component. The vulnerability exists in the...

CVE-2026-84975

A flaw was found in PJSIP, a multimedia communication library, specifically within its OpenSSL and GnuTLS Transport Layer Security TLS backends. This vulnerability allows a remote attacker to bypass server identity verification by using a specially crafted TLS certificate containing an embedded...

CVE-2026-77396

A flaw was found in PJSIP. A heap buffer overflow vulnerability exists in the AVI Audio Video Interleave parser. A remote attacker could exploit this by providing a specially crafted AVI file. When an application processes this file, it can lead to memory corruption, potentially allowing the...

Linux Distros Unpatched Vulnerability : CVE-2026-84975

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl....

Linux Distros Unpatched Vulnerability : CVE-2026-77396

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the PJSIP AVI parser in pjmedia/src/pjmedia/aviplayer.c uses...

CVE-2026-84975

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

DEBIAN-CVE-2026-84975

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

DEBIAN-CVE-2026-77396

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the PJSIP AVI parser in pjmedia/src/pjmedia/aviplayer.c uses an input-file video chunk length as the number of bytes copied into a frame buffer whose capacity is derived from the declared media...

CVE-2026-77396

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the PJSIP AVI parser in pjmedia/src/pjmedia/aviplayer.c uses an input-file video chunk length as the number of bytes copied into a frame buffer whose capacity is derived from the declared media...

UBUNTU-CVE-2026-77396

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the PJSIP AVI parser in pjmedia/src/pjmedia/aviplayer.c uses an input-file video chunk length as the number of bytes copied into a frame buffer whose capacity is derived from the declared media...

CVE-2026-84975

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

UBUNTU-CVE-2026-84975

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

CVE-2026-77396

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the PJSIP AVI parser in pjmedia/src/pjmedia/aviplayer.c uses an input-file video chunk length as the number of bytes copied into a frame buffer whose capacity is derived from the declared media...

CVE-2026-84975

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

EUVD-2026-83197

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

CVE-2026-84975 PJSIP: TLS server identity (hostname) verification bypass via embedded NUL in certificate SubjectAltName (OpenSSL and GnuTLS backends)

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...

CVE-2026-84975

PJSIP versions 2.17 and earlier are affected by a TLS server identity verification bypass in the OpenSSL and GnuTLS backends. The vulnerable code in ssl_sock_ossl.c and ssl_sock_gtls.c copies DNS SubjectAltName values using string functions that recalculate length and truncate an embedded NUL byt...

CVE-2026-84975 PJSIP: TLS server identity (hostname) verification bypass via embedded NUL in certificate SubjectAltName (OpenSSL and GnuTLS backends)

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/sslsockossl.c and pjlib/src/pj/sslsockgtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an...