#VU110103 Buffer overflow in Glibc - CVE-2015-8778
Vulnerability identifier: #VU110103
Vulnerability risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID:
CWE-ID:
CWE-119
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 execute arbitrary code.
Integer overflow in the GNU C Library (aka glibc or libc6) before 2.23 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via the size argument to the __hcreate_r function, which triggers out-of-bounds heap-memory access.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Glibc: 0.1 - 2.22.90
External links
https://lists.fedoraproject.org/pipermail/package-announce/2016-May/184626.html
https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html
https://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
https://rhn.redhat.com/errata/RHSA-2017-0680.html
https://seclists.org/fulldisclosure/2019/Sep/7
https://www.debian.org/security/2016/dsa-3480
https://www.debian.org/security/2016/dsa-3481
https://www.openwall.com/lists/oss-security/2016/01/19/11
https://www.openwall.com/lists/oss-security/2016/01/20/1
https://www.securityfocus.com/bid/83275
https://www.ubuntu.com/usn/USN-2985-1
https://www.ubuntu.com/usn/USN-2985-2
https://access.redhat.com/errata/RHSA-2017:1916
https://seclists.org/bugtraq/2019/Sep/7
https://security.gentoo.org/glsa/201602-02
https://security.gentoo.org/glsa/201702-11
https://sourceware.org/bugzilla/show_bug.cgi?id=18240
https://www.sourceware.org/ml/libc-alpha/2016-02/msg00502.html
Q & A
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.
