Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting libstdc++ package, versions <0:4.8.5-28.el7
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Test your applications- Snyk ID SNYK-CENTOS7-LIBSTDC-2099501
- published 26 Jul 2021
- disclosed 25 Mar 2017
Introduced: 25 Mar 2017
CVE-2017-11671 Open this link in a new tabHow to fix?
Upgrade Centos:7
libstdc++
to version 0:4.8.5-28.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libstdc++
package and not the libstdc++
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing failures of these instructions to go unreported. This could potentially lead to less randomness in random number generation.
References
- http://www.securityfocus.com/bid/100018
- http://openwall.com/lists/oss-security/2017/07/27/2
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80180
- https://gcc.gnu.org/ml/gcc-patches/2017-03/msg01349.html
- https://access.redhat.com/security/cve/CVE-2017-11671
- https://access.redhat.com/errata/RHSA-2018:0849