Vulnerability identifier: #VU31436
Vulnerability risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-19
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Glibc
Universal components / Libraries /
Libraries used by multiple products
Vendor: GNU
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The pop_fail_stack function in the GNU C Library (aka glibc or libc6) allows context-dependent attackers to cause a denial of service (assertion failure and application crash) via vectors related to extended regular expression processing.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Glibc: 2.0 - 2.27.9000
External links
http://www.openwall.com/lists/oss-security/2017/02/14/9
http://www.securityfocus.com/bid/76916
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=779392
http://security.gentoo.org/glsa/201908-06
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.