Detections
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Ubuntu 16.04 ESM : PCRE vulnerabilities (USN-5665-1)

high Nessus Plugin ID 166014

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5665-1 advisory.

 - The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression. (CVE-2017-6004)

 - libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup. (CVE-2017-7186)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5665-1

Plugin Details

Severity: High

ID: 166014

File Name: ubuntu_USN-5665-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/11/2022

Updated: 7/10/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2017-7186

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:libpcre16-3, p-cpe:/a:canonical:ubuntu_linux:libpcre3, p-cpe:/a:canonical:ubuntu_linux:libpcre3-dev, p-cpe:/a:canonical:ubuntu_linux:libpcre32-3, p-cpe:/a:canonical:ubuntu_linux:libpcrecpp0v5, p-cpe:/a:canonical:ubuntu_linux:pcregrep

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2022

Vulnerability Publication Date: 2/16/2017

Reference Information

CVE: CVE-2017-6004, CVE-2017-7186

USN: 5665-1