Gnupg
Monthly
Stack-based buffer overflow in GnuPG's tpm2daemon component allows local attackers to achieve full system compromise through specially crafted PKDECRYPT commands targeting TPM-backed RSA and ECC keys. Public exploit code exists for this vulnerability, which affects GnuPG versions before 2.5.17 and impacts users of GnuPG, Gpg4win, and Stack Overflow integrations. No patch is currently available, leaving systems vulnerable to local privilege escalation and arbitrary code execution.
GnuPG's gpg-agent fails to properly validate session key sizes in S/MIME messages, allowing remote attackers to trigger a stack buffer overflow via oversized CMS EnvelopedData payloads. Public exploit code exists for this vulnerability, which affects GnuPG versions before 2.5.17 and can be weaponized for denial of service or potentially remote code execution. No patch is currently available.
In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify. Rated low severity (CVSS 2.7), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.
Stack-based buffer overflow in GnuPG's tpm2daemon component allows local attackers to achieve full system compromise through specially crafted PKDECRYPT commands targeting TPM-backed RSA and ECC keys. Public exploit code exists for this vulnerability, which affects GnuPG versions before 2.5.17 and impacts users of GnuPG, Gpg4win, and Stack Overflow integrations. No patch is currently available, leaving systems vulnerable to local privilege escalation and arbitrary code execution.
GnuPG's gpg-agent fails to properly validate session key sizes in S/MIME messages, allowing remote attackers to trigger a stack buffer overflow via oversized CMS EnvelopedData payloads. Public exploit code exists for this vulnerability, which affects GnuPG versions before 2.5.17 and can be weaponized for denial of service or potentially remote code execution. No patch is currently available.
In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify. Rated low severity (CVSS 2.7), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.