CVE-2015-8983

Integer overflow in the _IO_wstr_overflow function in libio/wstrops.c in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors related to computing a size in bytes, which triggers a heap-based buffer overflow.

• CWE-190

• http://www.openwall.com/lists/oss-security/2017/02/14/9Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/72740Third Party Advisory, VDB Entry
• https://sourceware.org/bugzilla/show_bug.cgi?id=17269Issue Tracking, Patch
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33
• https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/14/9Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/72740Third Party Advisory, VDB Entry
• https://sourceware.org/bugzilla/show_bug.cgi?id=17269Issue Tracking, Patch
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33
• https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlThird Party Advisory

Published

Mar 20, 2017

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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