EulerOS Virtualization 3.0.1.0 : pcre (EulerOS-SA-2019-1558)

critical Nessus Plugin ID 125102
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Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the pcre packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

- PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with certain recursion, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-2328)

- PCRE before 8.38 mishandles the : and \\\\ substrings in character classes, which allows remote attackers to cause a denial of service (uninitialized memory read) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8390)

- Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE before 8.38 allows remote attackers to cause a denial of service (crash) or obtain sensitive information from heap memory and possibly bypass the ASLR protection mechanism via a crafted regular expression with an excess closing parenthesis.(CVE-2015-5073)

- PCRE before 8.38 mishandles (?123) subroutine calls and related subroutine calls, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8387)

- The pcre_exec function in pcre_exec.c in PCRE before 8.38 mishandles a // pattern with a \\01 string, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8380)

- The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.(CVE-2016-3191)

- The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain : nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8391)

- PCRE before 8.36 mishandles the /(((a\\2)|(a*)\\gi1/4oe-1i1/4z))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-2327)

- PCRE before 8.38 mishandles the (?(i1/4oedigitsi1/4z) and (?(Ri1/4oedigitsi1/4z) conditions, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8394)

- PCRE before 8.38 mishandles the /(?=di(?i1/4oe=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8388)

- PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8386)

- PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\\\.|(^\\\\\\\\W_)?)+)+$/.(CVE-2015-3217)

- PCRE before 8.38 mishandles the /(?|(\\k'Pm')|(?'Pm'))/ pattern and related patterns with certain forward references, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.(CVE-2015-8385)

- A flaw was found in the way PCRE handled certain malformed regular expressions. This issue could cause an application (for example, Konqueror) linked against PCRE to crash while parsing malicious regular expressions.(CVE-2014-8964)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected pcre packages.

See Also

http://www.nessus.org/u?79482695

Plugin Details

Severity: Critical

ID: 125102

File Name: EulerOS_SA-2019-1558.nasl

Version: 1.9

Type: local

Published: 5/15/2019

Updated: 2/8/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:pcre, p-cpe:/a:huawei:euleros:pcre-devel, cpe:/o:huawei:euleros:uvp:3.0.1.0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/10/2019

Reference Information

CVE: CVE-2014-8964, CVE-2015-2327, CVE-2015-2328, CVE-2015-3217, CVE-2015-5073, CVE-2015-8380, CVE-2015-8385, CVE-2015-8386, CVE-2015-8387, CVE-2015-8388, CVE-2015-8390, CVE-2015-8391, CVE-2015-8394, CVE-2016-3191

BID: 71206, 75018, 75430