Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Media: dvb-net: fixed OOB access in ULE extension header tables The ulemandatoryexthandlers and uleoptionalexthandlers tables in handleoneuleextension are declared with 255 elements valid indices 0-254. However, the htype index i...

DEBIAN-CVE-2026-53600

async-tar is a tar archive reading/writing library for async Rust. Prior to version 0.6.1, async-tar mis-applies a buffered PAX size extension to an intermediary extension header a GNU longname L, a GNU longlink K, or a PAX x/g header instead of to the next file entry. POSIX requires a PAX...

CVE-2026-53600 async-tar PAX extension-header desync enables tar entry/content smuggling

async-tar is a tar archive reading/writing library for async Rust. Prior to version 0.6.1, async-tar mis-applies a buffered PAX size extension to an intermediary extension header a GNU longname L, a GNU longlink K, or a PAX x/g header instead of to the next file entry. POSIX requires a PAX...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Reenabling NETIFFIPV6CSUM offloading for BIG TCP packets The problematic commit disabled the hardware offloading of IPv6 packets with extension headers on devices that advertise NETIFFIPV6CSUM. This was based on the definiti...

Nmap 7.9.9 Extension Header Integer Underflow

Proof of concept for the IPv6 extension header integer underflow discovered in Nmap version 7.9.9. Exploit Title: Nmap 7.99 - Extension Header Integer Underflow CVE: CVE-2026-58058 Date: 2026-06-29 Exploit Author: Mohammed Idrees Banyamer Author Country: Jordan Instagram: @banyamersecurity Author...

Linux Distros Unpatched Vulnerability : CVE-2026-72021

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipvs: use parsed transport offset in SCTP state lookup setsctpstate reads the SCTP chunk header again in order to drive the IPVS SCTP state table. For IPv6 it...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100587)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100587 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds...

Nmap 7.99 - Extension Header Integer Underflow

Exploit Title: Nmap 7.99 - Extension Header Integer Underflow CVE: CVE-2026-58058 Date: 2026-06-29 Exploit Author: Mohammed Idrees Banyamer Author Country: Jordan Instagram: @banyamersecurity Author GitHub: https://github.com/mbanyamer Author Blog : https://banyamersecurity.com/blog/ Vendor...

CVE-2026-72348

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header lengt...

UBUNTU-CVE-2026-72348

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header lengt...

CVE-2026-72348 netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header lengt...

EUVD-2026-59247

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header lengt...

CVE-2026-68477 ipvs: fix more places with wrong ipv6 transport offsets

In the Linux kernel, the following vulnerability has been resolved: ipvs: fix more places with wrong ipv6 transport offsets Sashiko reports for more incorrect IPv6 transport offsets. The app code for TCP was assuming IPv4 network header even after the ipvsh argument was provided. This can cause...

Security update for nmap

This update for nmap fixes the following issue CVE-2026-58058: crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash bsc1269570. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

Security update for nmap

This update for nmap fixes the following issue: CVE-2026-58058: crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash bsc1269570. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

SUSE CVE-2026-63920

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

CVE-2026-63920

The CVE-2026-63920 entry describes a Linux kernel vulnerability in IPv6 extension header handling. The issue arises when ip6_datagram_recv_specific_ctl() builds IPV6_…cmsgs by trusting on-wire hdrlen (ptr[1]) during put_cmsg() length calculation. Although the write to hdrlen is in-bounds, reading...

EUVD-2026-45693

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

CVE-2026-63920 ipv6: validate extension header length before copying to cmsg

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

OESA-2026-3094 nmap security update

Nmap "Network Mapper" is a free and open source license utility for network discovery and security \ auditing. It was designed to rapidly scan large networks, but works fine against single hosts. Security Fixes: Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured...