arxius: Open redirects protection bypass

Hello, The regular expression that you are using to validate the redirect GET parameter for the /signup and /login endpoints is not complete, which allows an attacker to bypass your open redirects protection in order to redirect victims to malicious pages. The following are two PoCs, one for each...

CVE-2017-9728

In uClibc 0.9.33.2, there is an out-of-bounds read in the getsubexp function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9728

In uClibc 0.9.33.2, there is an out-of-bounds read in the getsubexp function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9729

In uClibc 0.9.33.2, there is stack exhaustion uncontrolled recursion in the checkdstlimitscalcpos1 function in misc/regex/regexec.c when processing a crafted regular expression...

Out-of-bounds

In uClibc 0.9.33.2, there is an out-of-bounds read in the getsubexp function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9729

In uClibc 0.9.33.2, there is stack exhaustion uncontrolled recursion in the checkdstlimitscalcpos1 function in misc/regex/regexec.c when processing a crafted regular expression...

DEBIAN-CVE-2017-9729

In uClibc 0.9.33.2, there is stack exhaustion uncontrolled recursion in the checkdstlimitscalcpos1 function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9728

CVE-2017-9728 affects uClibc 0.9.33.2, with an out-of-bounds read in the get_subexp function of misc/regex/regexec.c when processing a crafted regular expression. The connected sources consistently describe this exact issue; no remediation or patch details are provided in the supplied documents. ...

CVE-2017-9729

In uClibc 0.9.33.2, there is stack exhaustion uncontrolled recursion in the checkdstlimitscalcpos1 function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9728

In uClibc 0.9.33.2, there is an out-of-bounds read in the getsubexp function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9728

In uClibc 0.9.33.2, there is an out-of-bounds read in the getsubexp function in misc/regex/regexec.c when processing a crafted regular expression...

CVE-2017-9729

In uClibc 0.9.33.2, there is stack exhaustion uncontrolled recursion in the checkdstlimitscalcpos1 function in misc/regex/regexec.c when processing a crafted regular expression...

Internet Bug Bounty: PHP mbstring / Oniguruma multiple remote heap/stack corruptions

Oniguruma 1 by K. Kosako is a BSD licensed regular expression library that supports a variety of character encodings. The Ruby programming language, in version 1.9, as well as PHP's multi-byte string module since PHP5, use Oniguruma as their regular expression engine. It is also used in products...

UBUNTU-CVE-2017-9438

libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service stack consumption via a crafted rule involving hex strings that is mishandled in the yrreemit function, a different vulnerability than CVE-2017-9304...

UBUNTU-CVE-2017-9304

libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service stack consumption via a crafted rule that is mishandled in the yrreemit function...

PT-2017-18835

Name of the Vulnerable Software and Affected Versions YARA version 3.5.0 Description The issue allows remote attackers to cause a denial of service, specifically stack consumption, via a crafted rule. This occurs due to mishandling in the yr re emit function within the regexp module...

CVE-2017-9225

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 write in onigencunicodegetcasefoldcodesbystr occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in...

Heap overflow

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 nextstateval during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetchtoken and...

CVE-2017-9226

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 nextstateval during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetchtoken and...

Race condition

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 leftadjustcharhead during regular expression compilation. Invalid handling of reg-dmax in forwardsearchrange could result in an invalid pointer...