Ubuntu.comUB:CVE-2016-1283CVE-2016-1283
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.016 Low
EPSS
Percentile
87.5%
The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the
/((?:F?+(?:^(?®a+"){99}-))(?J)(?‘R’(?‘R’<((?‘RR’(?‘R’){97)?J)?J)(?‘R’(?‘R’){99|(:(?|(?‘R’)(\k’R’)|((?‘R’)))H’R’R)(H’R))))))/
pattern and related patterns with named subgroups, 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.
Bugs
- <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=809706>
- <https://bugs.exim.org/show_bug.cgi?id=1767>
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 8.34 |
| ebarretto | pcre2 not affected as vulnerable code is not present |
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.016 Low
EPSS
Percentile
87.5%