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

This script is Copyright (C) 2017 Tenable Network Security, Inc.


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).

See also :

http://php.net/ChangeLog-7.php
http://www.nessus.org/u?947f251a

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 101332 ()

Bugtraq ID:

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

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