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CVE-2017-11671
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…
Medium4.0EPSS 0.47%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.0 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.0.
Weakness
Affected products
n/a
- affected n/a
References (5)
- http://openwall.com/lists/oss-security/2017/07/27/2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 100018 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2018:0849 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80180 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://gcc.gnu.org/ml/gcc-patches/2017-03/msg01349.html (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2017-11671)Record last updated .