CVE-2012-4412: Integer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows co...

Security readout for executives and security teams

This is an old glibc flaw where very long strings can crash affected software and may enable code execution in some contexts. Because glibc is a core Linux library, exposure depends on whether legacy systems or embedded firmware still ship glibc/libc6 2.17 or earlier and process attacker-controlled strings. Most current Linux distributions should be patched. Risk remains in unsupported servers, frozen appliances, containers, and embedded products using glibc/libc6 2.17 or earlier, especially where services sort or compare untrusted long strings using locale-aware collation. Treat this as a legacy-platform risk, not a new emergency. Prioritize confirming that no critical business systems or appliances still run glibc/libc6 2.17 or earlier. Escalate remediation for unsupported systems exposed to untrusted input. Mitigation focus: Apply vendor glibc/libc6 security updates for each affected operating system or firmware image.; Replace unsupported Linux releases that cannot receive glibc fixes.; Ask appliance vendors whether firmware includes patched glibc for CVE-2012-4412..

Prepared

Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.