Heap-based buffer overflow in GNU C Library (glibc) - CVE-2012-4412

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Integer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier. A remote attacker can use a long string to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2012-4412

Links to Public Exploits and PoC-codes

• Exploit #4077 - GNU glibc - 'strcoll()' Routine Integer Overflow (August 11, 2020)

External References

• http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
• http://seclists.org/fulldisclosure/2019/Jun/18
• http://secunia.com/advisories/55113
• http://sourceware.org/bugzilla/show_bug.cgi?id=14547
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
• http://www.openwall.com/lists/oss-security/2012/09/07/9
• http://www.ubuntu.com/usn/USN-1991-1
• https://bugzilla.redhat.com/show_bug.cgi?id=855385
• https://seclists.org/bugtraq/2019/Jun/14
• https://security.gentoo.org/glsa/201503-04

Related Security Bulletins

• Multiple vulnerabilities in GNU Glibc
• SUSE Linux update for glibc
• Gentoo update for GNU C Library
• Slackware Linux update for glibc