Detections
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Linux Distros Unpatched Vulnerability : CVE-2017-11671

medium Nessus Plugin ID 261303

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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. (CVE-2017-11671)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://ubuntu.com/security/CVE-2017-11671

Plugin Details

Severity: Medium

ID: 261303

File Name: unpatched_CVE_2017_11671.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 9/4/2025

Updated: 9/4/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2017-11671

CVSS v3

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gcc-4.9, p-cpe:/a:canonical:ubuntu_linux:gcc-i686-linux-android, p-cpe:/a:canonical:ubuntu_linux:gcc-mingw-w64, p-cpe:/a:canonical:ubuntu_linux:gcc-arm-linux-androideabi, p-cpe:/a:canonical:ubuntu_linux:gcc-avr, p-cpe:/a:canonical:ubuntu_linux:gcc-m68hc1x, p-cpe:/a:canonical:ubuntu_linux:gcc-4.7, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gcc-3.3, p-cpe:/a:canonical:ubuntu_linux:gcc-snapshot, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:canonical:ubuntu_linux:gcc-4.8-armhf-cross, p-cpe:/a:canonical:ubuntu_linux:gcc-4.7-armhf-cross, p-cpe:/a:canonical:ubuntu_linux:gcc-msp430, p-cpe:/a:canonical:ubuntu_linux:gcc-5-cross, p-cpe:/a:canonical:ubuntu_linux:gcc-4.8-arm64-cross, p-cpe:/a:canonical:ubuntu_linux:gccgo-4.9, p-cpe:/a:canonical:ubuntu_linux:gcc-arm-none-eabi, p-cpe:/a:canonical:ubuntu_linux:gcc-4.7-armel-cross, p-cpe:/a:canonical:ubuntu_linux:gcc-h8300-hms, p-cpe:/a:canonical:ubuntu_linux:gcc-4.8, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gcc-4.8-powerpc-cross, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gcc-4.8-ppc64el-cross

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/26/2017

Reference Information

CVE: CVE-2017-11671