|
OpenSSL 1.0.1 ASN1 BIO Vulnerability
|
|
来源：agl@chromium.org 作者：Langley 发布时间：2012-04-23
|
|
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 <agl@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
|
| |
|
[ 推荐]
[ 评论(0条)]
[返回顶部] [打印本页]
[关闭窗口] |
|
|
| |
|
|
 |
|
推荐广告 |
|
|
|
|
|
