[SECURITY] [DSA 3565-1] botan1.10 security update

Fabricante: Debian
Fecha: 02/05/2016
Identificador: DSA 3565-1
[SECURITY] [DSA 3565-1] botan1.10 security update
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3565-1 security@debian.org https://www.debian.org/security/ Sebastien Delafond May 02, 2016 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : botan1.10 CVE ID : CVE-2015-5726 CVE-2015-5727 CVE-2015-7827 CVE-2016-2194 CVE-2016-2195 CVE-2016-2849 Debian Bug : 817932 822698 Several security vulnerabilities were found in botan1.10, a C++ library which provides support for many common cryptographic operations, including encryption, authentication, X.509v3 certificates and CRLs. CVE-2015-5726 The BER decoder would crash due to reading from offset 0 of an empty vector if it encountered a BIT STRING which did not contain any data at all. This can be used to easily crash applications reading untrusted ASN.1 data, but does not seem exploitable for code execution. CVE-2015-5727 The BER decoder would allocate a fairly arbitrary amount of memory in a length field, even if there was no chance the read request would succeed. This might cause the process to run out of memory or invoke the OOM killer. CVE-2015-7827 Use constant time PKCS #1 unpadding to avoid possible side channel attack against RSA decryption CVE-2016-2194 Infinite loop in modular square root algorithm. The ressol function implementing the Tonelli-Shanks algorithm for finding square roots could be sent into a nearly infinite loop due to a misplaced conditional check. This could occur if a composite modulus is provided, as this algorithm is only defined for primes. This function is exposed to attacker controlled input via the OS2ECP function during ECC point decompression. CVE-2016-2195 Fix Heap overflow on invalid ECC point. CVE-2016-2849 Use constant time modular inverse algorithm to avoid possible side channel attack against ECDSA. For the stable distribution (jessie), these problems have been fixed in version 1.10.8-2+deb8u1. We recommend that you upgrade your botan1.10 packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCgAGBQJXJ0lCAAoJEBC+iYPz1Z1kN+gH/3T3sH7kLQHW6nDYfKhMNTbC sSxmVj829q9vaSGpSHKOMQbgVfOS++sleg6bAesyO1vVEBz+a7cn2M+zgT4hGxR3 pZMrh1n+QmOklBi9O71i0lpQDMstxjKKyE3sLO7XCjG7yqq+ww/LeMdQyEneOqT/ qOBTWFUvim166LMD99XyqYDq4U+z1F94kszkIvHxGgYd6idJR7VGAwaXKs2qDybN +B1Oqp5E1FKdSishKsxLxpoTdKZkr1myFjhtSmM3mLOSfdr33HsNTWYjjlLE8U6C 6kn+fhKpnK9c72RoWF0WLAHHsam2sXrZgdcSCNMQjY2mCgQfFt9VtIGzFtMOb48= =8sU7 -----END PGP SIGNATURE-----