CVE-2016-6354

Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.

• CWE-119

• http://www.debian.org/security/2016/dsa-3653Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/18/8Release Notes, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/26/12Release Notes, Third Party Advisory
• https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466Patch
• https://security.gentoo.org/glsa/201701-31
• http://www.debian.org/security/2016/dsa-3653Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/18/8Release Notes, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/26/12Release Notes, Third Party Advisory
• https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466Patch
• https://security.gentoo.org/glsa/201701-31

Published

Sep 21, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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