Memory leak in GNU C Library (glibc) - CVE-2017-15671

Vulnerability identifier: #VU11545

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-15671

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the glob function in glob.c due to it skips freeing allocated memory when processing the ~ operator with a long user name when invoked with GLOB_TILDE. A remote attacker can trigger memory corruption and cause the service to crash.

GNU C Library (glibc)
Gentoo Linux
SUSE Linux
Fedora
Opensuse
EMC Atmos
glibc
Dell EMC Unisphere Central

Update to version 2.27.

EMC Atmos - addressed in versions 2.4.2 HF505, 2.4.3 HF505
glibc - addressed in versions 2.25-13.fc26, 2.26-15.fc27
Dell EMC Unisphere Central - update to 4.0.8.23220

• https://sourceware.org/bugzilla/show_bug.cgi?id=22325

• Gentoo update for glibc
• OpenSUSE Linux update for glibc
• SUSE Linux update for glibc
• Multiple vulnerabilities in Dell EMC Unisphere Central
• Multiple vulnerabilities in Dell EMC Atmos
• Fedora 27 update for glibc
• Fedora 26 update for glibc