Vulnerability CVE-2018-20796
Published: 2019-02-25   Modified: 2019-02-26

Description:
In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\\1\\1|t1|\\\2537)+' in grep.

Type:

CWE-674

 (Uncontrolled Recursion)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Netapp -> Cloud backup 
Netapp -> Ontap select deploy administration utility 
Netapp -> Steelstore cloud integrated storage 
GNU -> Glibc 

 References:
http://www.securityfocus.com/bid/107160
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141
https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html
https://security.netapp.com/advisory/ntap-20190315-0002/
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