Vulnerabilities

Kamailio 6.1.1 and earlier contain a remotely exploitable denial-of-service flaw (CWE-400) in the ims_registrar_pcscf module, the component that implements the IMS P-CSCF registrar role. The bug is triggered by network input reaching the pcscf_save_pending/save_pending path and by security-agreement parsing in sec_agree.c:parse_sec_agree(), allowing an unauthenticated remote attacker to exhaust resources or crash the SIP proxy. Successful exploitation yields high availability impact (CVSS 3.1 7.5, AV:N/AC:L/PR:N/UI:N) with no confidentiality or integrity loss, meaning IMS/VoLTE registration service behind the affected P-CSCF can be disrupted. Only deployments running Kamailio as a P-CSCF with the ims_registrar_pcscf and security-agreement (sec_agree) functionality enabled are affected; Kamailio installations that do not load these IMS modules are not exposed. No public proof-of-concept, in-the-wild exploitation, or CISA KEV listing is known, and EPSS estimates the 30-day exploitation probability at roughly 0.3%.

Do: Upgrade to a Kamailio release newer than 6.1.1 that includes the fix, prioritizing any system that loads the ims_registrar_pcscf or sec_agree modules. As interim mitigation, disable ims_registrar_pcscf if the P-CSCF role is not required, restrict access to the P-CSCF SIP ports to trusted IMS signaling peers, and monitor for worker crashes or unexpected restarts.

css_parser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parser#read_remote_file in lib/css_parser/parser.rb, and therefore load_uri! and the @import-following branch of add_block!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering, or protection against link-local, loopback, or RFC-1918 addresses. Location: redirects were followed recursively back into the same function, which also serviced file:// URIs, so a single attacker-controlled HTTP redirect could upgrade the bug from SSRF to arbitrary local file disclosure. Any consumer of css_parser that hands it attacker-influenced CSS together with a base_uri: option is exposed. This issue is fixed in version 3.0.0.

Joomla Extension - acymailing.com - SQL Injection in AcyMailing extension < 10.11.1 - A SQLi vulnerability in AcyMailing component < 10.11.1 for Joomla was discovered. Exploiting this flaw can lead to unauthorized database access and data leakage.