Amazon Linux AMI : php70 (ALAS-2017-867)

High Nessus Plugin ID 102181

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Out-of-bounds heap write in bitset_set_range() :

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. 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)

Buffer over-read from unitialized data in gdImageCreateFromGifCtx function

The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information. (CVE-2017-7890)

Invalid pointer dereference in left_adjust_char_head() :

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. 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-2017-9229)

Heap buffer overflow in next_state_val() during regular expression compilation :

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. 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)

Out-of-bounds stack read in mbc_enc_len() during regular expression searching :

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. 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)

Out-of-bounds stack read in match_at() during regular expression searching :

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. 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)

Solution

Run 'yum update php70' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-867.html

Plugin Details

Severity: High

ID: 102181

File Name: ala_ALAS-2017-867.nasl

Version: 3.4

Type: local

Agent: unix

Published: 2017/08/04

Updated: 2019/07/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

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:amazon:linux:php70, p-cpe:/a:amazon:linux:php70-bcmath, p-cpe:/a:amazon:linux:php70-cli, p-cpe:/a:amazon:linux:php70-common, p-cpe:/a:amazon:linux:php70-dba, p-cpe:/a:amazon:linux:php70-dbg, p-cpe:/a:amazon:linux:php70-debuginfo, p-cpe:/a:amazon:linux:php70-devel, p-cpe:/a:amazon:linux:php70-embedded, p-cpe:/a:amazon:linux:php70-enchant, p-cpe:/a:amazon:linux:php70-fpm, p-cpe:/a:amazon:linux:php70-gd, p-cpe:/a:amazon:linux:php70-gmp, p-cpe:/a:amazon:linux:php70-imap, p-cpe:/a:amazon:linux:php70-intl, p-cpe:/a:amazon:linux:php70-json, p-cpe:/a:amazon:linux:php70-ldap, p-cpe:/a:amazon:linux:php70-mbstring, p-cpe:/a:amazon:linux:php70-mcrypt, p-cpe:/a:amazon:linux:php70-mysqlnd, p-cpe:/a:amazon:linux:php70-odbc, p-cpe:/a:amazon:linux:php70-opcache, p-cpe:/a:amazon:linux:php70-pdo, p-cpe:/a:amazon:linux:php70-pdo-dblib, p-cpe:/a:amazon:linux:php70-pgsql, p-cpe:/a:amazon:linux:php70-process, p-cpe:/a:amazon:linux:php70-pspell, p-cpe:/a:amazon:linux:php70-recode, p-cpe:/a:amazon:linux:php70-snmp, p-cpe:/a:amazon:linux:php70-soap, p-cpe:/a:amazon:linux:php70-tidy, p-cpe:/a:amazon:linux:php70-xml, p-cpe:/a:amazon:linux:php70-xmlrpc, p-cpe:/a:amazon:linux:php70-zip, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 2017/08/04

Vulnerability Publication Date: 2017/05/24

Reference Information

CVE: CVE-2017-7890, CVE-2017-9224, CVE-2017-9226, CVE-2017-9227, CVE-2017-9228, CVE-2017-9229

ALAS: 2017-867