gnupg

About this tag
GnuPG (GNU Privacy Guard) is a widely used implementation of the OpenPGP standard for encryption, signing, and key management on Unix-like systems. Recent discussions on WindowsForum.com cover two critical vulnerabilities: CVE-2025-68973, an out-of-bounds write bug in the ASCII-armor parser that can cause memory corruption, and CVE-2025-68972, a clearsign form-feed flaw that allows unsigned text to bypass signature verification. Both issues affect GnuPG up to version 2.4.8, with upstream patches already released. These threads provide technical details, impact analysis, and patch rollout information for system administrators and security professionals managing GnuPG deployments.

  1. GnuPG Armor Parser Bug CVE-2025-68973: Fix and Patch Rollout

    A newly disclosed vulnerability in GnuPG’s ASCII‑armor parser can cause an out‑of‑bounds write that leads to memory corruption when processing crafted input, and upstream has already issued a targeted code fix while downstream distributions race to roll the patch into packages. Background GnuPG...
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    • ascii armor parsing cve 2025 68973 gnupg memory issues
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    • Forum: Security Alerts

  2. CVE-2025-68972: GnuPG Clearsign Form-Feed Bug Lets Unsigned Text Pass Signature

    A subtle formatting quirk in GnuPG’s clearsign handling lets an attacker append unsigned data to a signed message while still passing GnuPG’s verification routine — a signature‑verification bypass tracked as CVE‑2025‑68972 that affects GnuPG releases up to and including 2.4.8 and has been...