CVE-2017-8804

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-05-07 · updated 2026-06-17
Weakness: CWE-502

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

Affected products

GNU C Library (glibc): 2.25

References

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
http://www.securityfocus.com/bid/98339
https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7
https://seclists.org/oss-sec/2017/q2/228
https://sourceware.org/bugzilla/show_bug.cgi?id=21461
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
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html

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