CVE-2017-8804

The xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP packet to port 111, a related issue to CVE-2017-8779. NOTE: [Information provided from upstream and references

• CWE-502

• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html
• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html
• http://www.openwall.com/lists/oss-security/2017/05/05/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/98339Broken Link
• https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7Issue Tracking, Patch
• https://seclists.org/oss-sec/2017/q2/228
• https://sourceware.org/bugzilla/show_bug.cgi?id=21461Issue Tracking, Patch
• https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00128.html
• https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00129.html
• https://sourceware.org/ml/libc-alpha/2017-05/msg00105.htmlIssue Tracking, Patch
• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html
• http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html
• http://www.openwall.com/lists/oss-security/2017/05/05/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/98339Broken Link
• https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7Issue Tracking, Patch
• https://seclists.org/oss-sec/2017/q2/228
• https://sourceware.org/bugzilla/show_bug.cgi?id=21461Issue Tracking, Patch
• https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00128.html
• https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00129.html
• https://sourceware.org/ml/libc-alpha/2017-05/msg00105.htmlIssue Tracking, Patch

Published

May 7, 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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