Great responsibility, without great power

Welcome to this week's edition of the Threat Source newsletter. As I'm writing this, today April 28 is International Superhero Day. If you don't know the origin story behind this, perhaps you would assume that this day was dreamed up by Marvel. And… you would be correct. However, it's not a pure...

CVE-2026-4873

A flaw was found in curl. A remote attacker could exploit this by initiating an unencrypted connection via IMAP, SMTP, or POP3 and then making a subsequent request to the same host that requires Transport Layer Security TLS. Due to incorrect connection reuse, the subsequent request would bypass t...

EUVD-2026-26315

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service...

CVE-2026-5299

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service...

SUSE CVE-2010-4711

Double free vulnerability in the IMAP server component in GroupWise Internet Agent GWIA in Novell GroupWise before 8.02HP allows remote attackers to execute arbitrary code via a large parameter in a LIST command...

SUSE CVE-2010-4712

Multiple stack-based buffer overflows in gwia.exe in GroupWise Internet Agent GWIA in Novell GroupWise before 8.02HP allow remote attackers to execute arbitrary code via a Content-Type header containing 1 multiple items separated by ; semicolon characters or 2 crafted string data...

SUSE CVE-2010-4714

Multiple stack-based buffer overflows in Novell GroupWise before 8.02HP allow remote attackers to execute arbitrary code via a long HTTP Host header to 1 gwpoa.exe in the Post Office Agent, 2 gwmta.exe in the Message Transfer Agent, 3 gwia.exe in the Internet Agent, 4 the WebAccess Agent, or 5 th...

[SECURITY] Fedora 42 Update: miniupnpd-2.3.10-1.fc42

The MiniUPnP daemon is an UPnP IGD & PCP/NAT-PMP daemon for gateway routers. UPnP IGD & PCP/NAT-PMP are used to improve internet connectivity for devices behind a NAT router. Any peer to peer network application such as games, IM, etc. can benefit from a NAT router supporting UPnP IGD & PCP/NAT-P...

[SECURITY] Fedora 43 Update: miniupnpd-2.3.10-1.fc43

The MiniUPnP daemon is an UPnP IGD & PCP/NAT-PMP daemon for gateway routers. UPnP IGD & PCP/NAT-PMP are used to improve internet connectivity for devices behind a NAT router. Any peer to peer network application such as games, IM, etc. can benefit from a NAT router supporting UPnP IGD & PCP/NAT-P...

[SECURITY] Fedora 43 Update: asterisk-18.26.4-1.fc43

Asterisk is a complete PBX in software. It runs on Linux and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in three protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware...

PT-2026-36066

Name of the Vulnerable Software and Affected Versions Wireshark versions 4.6.0 through 4.6.4 Wireshark versions 4.4.0 through 4.4.14 Description A crash in the iLBC audio codec allows for a denial of service. Recommendations Update Wireshark versions 4.6.0 through 4.6.4 to a version newer than...

RHEL 8 : ovn23.06 (RHSA-2026:11695)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11695 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

PT-2026-36090

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the CIFS Common Internet File System component, certain local variables were not properly reinitialized before a request was replayed. This occurred in several code locations where...

Exploit for Out-of-bounds Write in Microsoft

CVE-2016-0189 Proof-of-Concept exploit for CVE-2016-0189 VBSc...

Squid: Squid: Denial of Service via crafted ICP traffic

A flaw was found in Squid. A remote attacker can exploit this vulnerability by sending specially crafted ICP Internet Cache Protocol traffic. This can lead to a Denial of Service DoS due to premature resource release and use-after-free vulnerabilities. This attack is possible in Squid deployments...

squid: Squid: Denial of Service via heap Use-After-Free vulnerability in ICP handling

A flaw was found in Squid. A remote attacker can exploit a heap Use-After-Free vulnerability when handling ICP Internet Cache Protocol traffic. This allows them to perform a reliable and repeatable Denial of Service DoS attack, making the Squid service unavailable. This attack is limited to...

EUVD-2026-26276

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-7422 MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and IPv6 Packet Processing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

Important: Red Hat Security Advisory: ovn25.03 security update

An update for ovn25.03 is now available for Fast Datapath for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

ovn: ovn: Heap Over-Read in ICMP Error Response Generation

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length iptotlen for IPv4, ip6plen for IPv6 without validating it against the actual packet buffer size...