CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
92.7%
Severity: Medium
Date : 2017-07-18
CVE-ID : CVE-2017-7186 CVE-2017-7244 CVE-2017-7245 CVE-2017-7246
Package : pcre
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-222
The package pcre before version 8.41-1 is vulnerable to multiple issues
including denial of service and arbitrary code execution.
Upgrade to 8.41-1.
The problems have been fixed upstream in version 8.41.
None.
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.
A stack-based read buffer overflow has been found in libpcre <= 8.40,
in the pcretest utility. It can lead to denial of service via a crafted
expression passed to the pcretest command.
A stack-based write buffer overflow has been found in libpcre <= 8.40,
in the pcretest utility. It can lead to arbitrary code execution via a
crafted expression passed to the pcretest command.
A stack-based write buffer overflow has been found in libpcre <= 8.40,
in the pcretest utility. It can lead to arbitrary code execution via a
crafted expression passed to the pcretest command.
An attacker can execute arbitrary code on the affected host by tricking
a user into passing a crafted expression to the pcretest command. A
remote attacker can cause a denial of service against an application
using libpcre via a crafted expression.
https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date
https://blogs.gentoo.org/ago/2017/03/20/libpcre-two-stack-based-buffer-overflow-write-in-pcre32_copy_substring-pcre_get-c/
https://blogs.gentoo.org/ago/2017/03/20/libpcre-invalid-memory-read-in-_pcre32_xclass-pcre_xclass-c/
https://bugs.exim.org/show_bug.cgi?id=2052
https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date
https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
https://security.archlinux.org/CVE-2017-7186
https://security.archlinux.org/CVE-2017-7244
https://security.archlinux.org/CVE-2017-7245
https://security.archlinux.org/CVE-2017-7246
blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/
blogs.gentoo.org/ago/2017/03/20/libpcre-invalid-memory-read-in-_pcre32_xclass-pcre_xclass-c/
blogs.gentoo.org/ago/2017/03/20/libpcre-two-stack-based-buffer-overflow-write-in-pcre32_copy_substring-pcre_get-c/
bugs.exim.org/show_bug.cgi?id=2052
security.archlinux.org/AVG-222
security.archlinux.org/CVE-2017-7186
security.archlinux.org/CVE-2017-7244
security.archlinux.org/CVE-2017-7245
security.archlinux.org/CVE-2017-7246
vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date
vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date
vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
92.7%