CVE-2017-11671

N/A
Published: July 26, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 01:02 AM UTC
1 product affected across 1 vendorGCC

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Severity
N/A
Exploit prediction
EPSS 0.5%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

x_refsource_CONFIRMMailing ListThird Party Advisory
http://openwall.com/lists/oss-security/2017/07/27/2
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/100018
x_refsource_CONFIRMIssue TrackingVendor Advisory
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80180

CVSS

Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-338

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