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Vulnerability record · CVE-2017-8804 · published 7 May 2017

CVE-2017-8804: Gnu glibc deserialization of untrusted data vulnerability

Gnu · Glibc

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

7.5 CVSS 3.0 High EPSS 7.7% · top 5.6% CWE-502 · Deserialization of untrusted data
7.5CVSS 3.0 base score, v2 7.8
7.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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/2017/05/05/2 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/98339 Broken Link
https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7 Issue TrackingPatch
https://seclists.org/oss-sec/2017/q2/228
https://sourceware.org/bugzilla/show_bug.cgi?id=21461 Issue TrackingPatch
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.html Issue TrackingPatch
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/2017/05/05/2 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/98339 Broken Link
https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7 Issue TrackingPatch
https://seclists.org/oss-sec/2017/q2/228
https://sourceware.org/bugzilla/show_bug.cgi?id=21461 Issue TrackingPatch
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.html Issue TrackingPatch

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-8804), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.