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Details of issue NIXPKGS-2026-1354

NIXPKGS-2026-1354
published 1 month, 3 weeks ago
Permalink CVE-2026-40684
5.9 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • 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): High (H)
  • 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 1 month, 3 weeks ago by @LeSuisse Activity log
  • Created suggestion 1 month, 3 weeks ago
  • @LeSuisse ignored
    4 maintainers
    • @4z3
    • @dasJ
    • @Conni2461
    • @helsinki-Jo
    1 month, 3 weeks ago maintainer.ignore
  • @LeSuisse accepted 1 month, 3 weeks ago
  • @LeSuisse published on GitHub 1 month, 3 weeks ago
In Exim before 4.99.2, on systems using musl libc (not …

In Exim before 4.99.2, on systems using musl libc (not glibc), an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dn_expand oddity in octal printing.

Affected products

Exim
  • <4.99.2

Matching in nixpkgs

pkgs.exim

Mail transfer agent (MTA)

Package maintainers

Ignored maintainers (3)