FreeBSD : oniguruma -- multiple vulnerabilities (b396cf6c-62e6-11e7-9def-b499baebfeaf)

critical Nessus Plugin ID 101332

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

the PHP project reports :

- A stack out-of-bounds read occurs in match_at() during regular expression searching. A logical error involving order of validation and access in match_at() could result in an out-of-bounds read from a stack buffer (CVE-2017-9224).

- A heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption (CVE-2017-9226).

- A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer (CVE-2017-9227).

- A heap out-of-bounds write occurs in bitset_set_range() during regular expression compilation due to an uninitialized variable from an incorrect state transition. An incorrect state transition in parse_char_class() could create an execution path that leaves a critical local variable uninitialized until it's used as an index, resulting in an out-of-bounds write memory corruption (CVE-2017-9228).

- A SIGSEGV occurs in left_adjust_char_head() during regular expression compilation. Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference, normally as an immediate denial-of-service condition (CVE-2017-9228).

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 101332

File Name: freebsd_pkg_b396cf6c62e611e79defb499baebfeaf.nasl

Version: 3.5

Type: local

Family: FreeBSD Local Security Checks

Published: 7/10/2017

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libevhtp, p-cpe:/a:freebsd:freebsd:oniguruma4, p-cpe:/a:freebsd:freebsd:oniguruma5, p-cpe:/a:freebsd:freebsd:oniguruma6, p-cpe:/a:freebsd:freebsd:php56-mbstring, p-cpe:/a:freebsd:freebsd:php70-mbstring, p-cpe:/a:freebsd:freebsd:php71-mbstring, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/7/2017

Vulnerability Publication Date: 7/6/2017

Reference Information

CVE: CVE-2017-9224, CVE-2017-9226, CVE-2017-9227, CVE-2017-9228

Detections

Analytics