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Details of issue NIXPKGS-2026-1170

NIXPKGS-2026-1170
published 2 months, 1 week ago
Permalink CVE-2026-6507
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 2 months, 1 week ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored package prometheus-dnsmasq-exporter
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
Dnsmasq: dnsmasq: denial of service due to out-of-bounds write in dhcp bootreply processing

A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a dnsmasq server configured with the `--dhcp-split-relay` option. This can lead to memory corruption, causing the dnsmasq daemon to crash and resulting in a denial of service (DoS).

References

Affected products

rhcos
dnsmasq

Matching in nixpkgs

pkgs.dnsmasq

Integrated DNS, DHCP and TFTP server for small networks

  • nixos-unstable 2.92
    • nixpkgs-unstable 2.92
    • nixos-unstable-small 2.92
Ignored packages (1)

Package maintainers