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CVE-2017-11671

nvd nist
Published: Jul 26, 2017Modified: May 13, 2026

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4.0
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 2.5 / Impact: 1.4
Source: NVD

Description

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.

Affected (13)

Products: Gnu: Gcc
Gnu
1 product
Gcc
Configuration A
13 vulnerable
Vulnerable SoftwareAffected Versions
Gnu
Gcc
Version 4.6
Gcc
Version 4.7
Gcc
Version 4.8
Gcc
Version 4.9
Gcc
Version 5.0
Gcc
Version 5.1
Gcc
Version 5.2
Gcc
Version 5.3
Gcc
Version 5.4
Gcc
Version 6.0
Gcc
Version 6.1
Gcc
Version 6.2
Gcc
Version 6.3

Related CWEs

CWE-338
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

References (10)

Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Third Party AdvisoryVDB Entry
Source: cve@mitre.org
Source: cve@mitre.org
Issue TrackingVendor Advisory
Source: cve@mitre.org
Mailing List
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List

Timeline

No history available yet.