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CVE-2017-11671: gnu gcc

CVSS: 4.0v3.0MediumModified
AliasesSUSE-SU-2017:2380-1SUSE-SU-2017:2526-1RHSA-2018:0849
Published 26-07-2017Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-11671 is a medium (CVSS 4.0) vulnerability in gnu gcc. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.4% of scored vulnerabilities.

Overall risk
16/100
0100
Low · default modelHow is this calculated?
CVSS score
4.0/10
010
Medium · v3.0 (NVD)
EPSS score
0.47%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-07-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

+0.03 pp

From 0.44% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat40 products
  • cpp< 0:4.8.5-28.el7
  • gcc< 0:4.8.5-28.el7
  • gcc-base-debuginfo< 0:4.8.5-28.el7
  • gcc-c++< 0:4.8.5-28.el7
  • gcc-debuginfo< 0:4.8.5-28.el7
Ubuntu23 products
  • gcc-3.3All versions (No fix recorded)
  • gcc-4.7All versions (No fix recorded)
  • gcc-4.7-armel-crossAll versions (No fix recorded)
  • gcc-4.7-armhf-crossAll versions (No fix recorded)
  • gcc-4.8All versions (No fix recorded)
Suse22 products
  • gcc48&distro=SUSE Linux Enterprise Desktop 12 SP2< 4.8.5-31.3.1
  • gcc48&distro=SUSE Linux Enterprise Desktop 12 SP3< 4.8.5-31.3.1
  • gcc48&distro=SUSE Linux Enterprise Server 12 SP1-LTSS< 4.8.5-31.3.1
  • gcc48&distro=SUSE Linux Enterprise Server 12 SP2< 4.8.5-31.3.1
  • gcc48&distro=SUSE Linux Enterprise Server 12 SP3< 4.8.5-31.3.1
Gnu1 product
  • gcc4.6 | 4.7 | 4.8 | 4.9 | 5.0 | 5.1 | 5.2 | 5.3 | 5.4 | 6.0 | 6.1 | 6.2 | 6.3

4 vendors · 86 products

References

29 links
Show all 29 references