PT-2016-5407 · Kde+6 · Konqueror+7
Tomas Hoger
·
Publicado
2016-03-17
·
Atualizado
2018-01-05
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CVE-2016-3191
CVSS v3.1
9.8
Crítica
| Vetor | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
PCRE versions prior to 8.39
PCRE2 versions prior to 10.22
Description
The issue arises from the
compile branch function in pcre compile.c and pcre2 compile.c, which mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses. This allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression. The vulnerability has been demonstrated by a JavaScript RegExp object encountered by Konqueror.Recommendations
For PCRE versions prior to 8.39, update to version 8.39 or later to resolve the issue.
For PCRE2 versions prior to 10.22, update to version 10.22 or later to resolve the issue.
As a temporary workaround, consider restricting the use of nested parentheses in conjunction with
(*ACCEPT) substrings in regular expressions until a patch is available.Exploit
Correção
RCE
DoS
Buffer Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Konqueror
Pcre
Pcre2
Red Hat
Suse
Ubuntu