CVE-2025-48945 pycares has a Use-After-Free Vulnerability

pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS...

CVE-2025-48945 pycares has a Use-After-Free Vulnerability

pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS...

CVE-2025-48945 pycares has a Use-After-Free Vulnerability

pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS...

CVE-2025-48945

Affected component: pycares (Python module interfacing with c-ares). Vulnerability: use-after-free when a Channel object is garbage-collected while DNS queries are still pending, leading to a fatal Python error and interpreter crash. Versions: vulnerable prior to pycares 4.9.0 (fixed in 4.9.0). R...

CVE-2025-48945

pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS...

Use-After-Free

pycares is vulnerable to use-after-free. The vulnerability is due to improper lifecycle management of the Channel object, which allows it to be garbage collected while DNS queries are still pending...

MCP Server SSE DNS Rebinding

ModelContextProtocol MCP servers using SSE Server-Sent Events transport mode are prone to DNS rebinding attacks when they do not enforce strict verification of both the 'Origin' and 'Host' headers. This vulnerability allows an attacker to bypass same-origin policies, potentially leading to...

[SECURITY] Fedora 42 Update: kea-2.6.3-1.fc42

DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support server discovery, address assignment, renewal, rebinding and release. The DHCPv6 server supports prefix delegation. Both servers suppor...

[SECURITY] Fedora 41 Update: kea-2.6.3-1.fc41

DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support server discovery, address assignment, renewal, rebinding and release. The DHCPv6 server supports prefix delegation. Both servers suppor...

Fortinet FortiClientWindows Trust Management Issue Vulnerability

Fortinet FortiClientWindows is a Windows-based mobile endpoint security solution from Fortinet. The solution provides IPsec and SSL encryption, WAN optimization, endpoint compliance and two-factor authentication when connected to a FortiGate firewall appliance. A trust management issue...

ALSA-2025:9150 Moderate: gvisor-tap-vsock security update

A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding. Security Fixes: net/http: Request smuggling due to acceptance of invalid chunked data in...

ALSA-2025:9151 Moderate: gvisor-tap-vsock security update

A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding. Security Fixes: net/http: Request smuggling due to acceptance of invalid chunked data in...

📄 Microsoft Windows 11 SMB Client Privilege Escalation / Remote Code Execution

This proof of concept demonstrates a complex attack chain exploiting improper access control in Windows SMB clients, leading to elevation of privilege through DNS record injection, NTLM relay attacks using impacket-ntlmrelayx, and coercion of a victim system including Windows 11 to authenticate t...

Moderate: gvisor-tap-vsock security update

A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding. Security Fixes: net/http: Request smuggling due to acceptance of invalid chunked data in...

pycares has a Use-After-Free Vulnerability

Summary pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. Details Root Cause The vulnerability stems from improper handling of callback...

GHSA-5QPG-RH4J-QP35 pycares has a Use-After-Free Vulnerability

Summary pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. Details Root Cause The vulnerability stems from improper handling of callback...

TencentOS Server 3: bind and dhcp (TSSA-2024:0227)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0227 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

TencentOS Server 3: dnsmasq (TSSA-2024:0093)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0093 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

TencentOS Server 4: aardvark-dns (TSSA-2024:0608)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0608 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

TencentOS Server 4: dnsmasq (TSSA-2024:0362)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0362 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...