Gentoo Linux Security Advisory 201402-24 - Multiple vulnerabilities have been discovered in GnuPG and Libgcrypt, which may result in execution of arbitrary code, Denial of Service, or the disclosure of private keys. Versions less than 2.0.22 are affected.
b179c24948b12fd20220e710cd0fc8df88dcb5a2e4985677436d991735781ae4Red Hat Security Advisory 2013-1459-01 - The GNU Privacy Guard is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard. A denial of service flaw was found in the way GnuPG parsed certain compressed OpenPGP packets. An attacker could use this flaw to send specially crafted input data to GnuPG, making GnuPG enter an infinite loop when parsing data. It was found that importing a corrupted public key into a GnuPG keyring database corrupted that keyring. An attacker could use this flaw to trick a local user into importing a specially crafted public key into their keyring database, causing the keyring to be corrupted and preventing its further use.
66f4f380227d5284e4fe726da477005d273d6e0b0babb21afcad548a7d3c4cc5Red Hat Security Advisory 2013-1458-01 - The GNU Privacy Guard is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard. It was found that GnuPG was vulnerable to the Yarom/Falkner flush+reload cache side-channel attack on the RSA secret exponent. An attacker able to execute a process on the logical CPU that shared the L3 cache with the GnuPG process could possibly use this flaw to obtain portions of the RSA secret key.
4ed140d307f2bb993d4c7916c9f09e01858d795fc86538c67ede4581485941e0Debian Linux Security Advisory 2773-1 - Two vulnerabilities were discovered in GnuPG, the GNU privacy guard, a free PGP replacement.
e077ea3264c37bcd24fbc332abf425b7495d109a8d76e55af9da3f607195c663Debian Linux Security Advisory 2774-1 - Two vulnerabilities were discovered in GnuPG 2, the GNU privacy guard, a free PGP replacement.
7bbc4f5dc7ed8480336fce6b2293b35a941d9c5286990097f3237cb526b79318Mandriva Linux Security Advisory 2013-247 - GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared as if it has all bits set, which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey. Special crafted input data may be used to cause a denial of service against GPG. GPG can be forced to recursively parse certain parts of OpenPGP messages ad infinitum. The updated packages have been patched to correct this issue.
eb8b68dbe596e9a343773777e3107f217d9e0cde3797f3795ed8c6806caff422Ubuntu Security Notice 1987-1 - Daniel Kahn Gillmor discovered that GnuPG treated keys with empty usage flags as being valid for all usages. Taylor R Campbell discovered that GnuPG incorrectly handled certain OpenPGP messages. If a user or automated system were tricked into processing a specially-crafted message, GnuPG could consume resources, resulting in a denial of service.
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