-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 OpenSSL Security Advisory [19 Apr 2012] =======================================
ASN1 BIO vulnerability (CVE-2012-2110) ======================================= A potentially exploitable vulnerability has been discovered in the OpenSSL function asn1_d2i_read_bio. Any application which uses BIO or FILE based functions to read untrusted DER format data is vulnerable. Affected functions are of the form d2i_*_bio or d2i_*_fp, for example d2i_X509_bio or d2i_PKCS12_fp. Applications using the memory based ASN1 functions (d2i_X509, d2i_PKCS12 etc) are not affected. In particular the SSL/TLS code of OpenSSL is *not* affected. Applications only using the PEM routines are not affected. S/MIME or CMS applications using the built in MIME parser SMIME_read_PKCS7 or SMIME_read_CMS *are* affected. The OpenSSL command line utility is also affected if used to process untrusted data in DER format. Note: although an application using the SSL/TLS portions of OpenSSL is not automatically affected it might still call a function such as d2i_X509_bio on untrusted data and be vulnerable. Thanks to Tavis Ormandy, Google Security Team, for discovering this issue and to Adam Langley <a...@chromium.org> for fixing it. Affected users should upgrade to OpenSSL 1.0.1a, 1.0.0i or 0.9.8v. References ========== URL for this Security Advisory: http://www.openssl.org/news/secadv_20120419.txt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBT5AJh6LSm3vylcdZAQII+Af/dPNEQrJZ6YHlytaMW6zvkG64pvYBLuoO BdJQnFBR3oWolOIQDyFD7byECly/czVHA5mTifsG+XyHeLHB5Zr2PsnLBLj3d6Su verXPt8JU/XQb+Rhn1P9F32qTMwhZkgNcjV3eOprpUBD7qNz+nQd1pJtlKX3asmK wtVYyX6Dbbe61GQ6nDxT4fLpAL6Yk/YJH3jRA/R4MW/0vyJzYCALKiCsFuAzp2Fl Ov5n3Gkn+Y+1jaaGpqNxdWv1F3OI8vieC4lN4CfbaDDkQxNCNBRwcucK/tBBKAxK 3gravlQDuqnGn3M6GOpVJ89hZaPscMvsKx80jUKZtn2kPBaC7NxYeQ== =91XR -----END PGP SIGNATURE----- ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager majord...@openssl.org
