Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: icmp6: Fixed the null-ptr-deref of ip6nullentry-rt6iidev in icmp6dev. With some IPv6 Ext Hdr RPL, SRv6, etc., we can send a packet that has the link-local address as src and dst IP, and it will be forwarded to an external IP in t...

CVE-2026-1681 net: Stack Overflow with Ping (to own IP Address) via Shell

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

EUVD-2026-29387

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

PT-2026-39942

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

The vulnerability of the dissect_icmpv6_nd_opt() function in the ICMPv6 protocol analyzer for computer network traffic analysis tool Wireshark allows a hacker to cause a service failure.

The vulnerability of the dissecticmpv6ndopt function in the ICMPv6 protocol analyzer for computer network traffic analysis tool Wireshark is related to an uncontrolled recursion. Exploiting this vulnerability could allow a attacker to cause service interruptions...

PT-2026-37409

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference exists in the icmp build probe function. This occurs when the IPv6 stack is not active specifically when CONFIG IPV6=m and not loaded, causing ipv6 stub-ipv6 d...

Linux Distros Unpatched Vulnerability : CVE-2026-43099

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv4: icmp: fix null-ptr-deref in icmpbuildprobe ipv6stub-ipv6devfind may return ERRPTR-EAFNOSUPPORT when the IPv6 stack is not active CONFIGIPV6=m and not...

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...

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...

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...

EUVD-2026-25420

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...

CVE-2026-5265 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...

CVE-2026-5265

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...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013072)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013072 advisory. In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix null pointer deref when receiving skb during sock creation The panic below is...

UBUNTU-CVE-2026-5265

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...

EUVD-2026-21206

An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX Series allows an attacker sending a specific, malformed ICMPv6 packet to cause the srxpfe process to crash and restart. Continued receipt and processing of these...

PT-2026-31806

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS on SRX Series versions prior to 21.2R3-S10, all versions of 21.3, versions 21.4 through 21.4R3-S12, all versions of 22.1, versions 22.2 through 22.2R3-S8, all versions of 22.4, versions 22.4 through 22.4R3-S9, version...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006721)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006721 advisory. In the Linux kernel, the following vulnerability has been resolved: tunnels: fix kasan splat when generating ipv4 pmtu error If we try to emit an icmp error in...

UBUNTU-CVE-2026-23398

In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmptagvalidation icmptagvalidation unconditionally dereferences the result of rcudereferenceinetprotosproto without checking for NULL. The inetprotos array is sparse -- only about 15 of 256...