CVE-2017-8804

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

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 6.04% Top 10%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7 patch issue tracking
https://sourceware.org/ml/libc-alpha/2017-05/msg00105.html patch issue tracking
http://www.securityfocus.com/bid/98339 vdb entry broken link
https://sourceware.org/bugzilla/show_bug.cgi?id=21461 patch issue tracking
http://www.openwall.com/lists/oss-security/2017/05/05/2 third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html vendor advisory
https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00128.html
https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00129.html
https://seclists.org/oss-sec/2017/q2/228

Frequently Asked Questions

What is the severity of CVE-2017-8804?
CVE-2017-8804 has been scored as a high severity vulnerability.
How to fix CVE-2017-8804?
To fix CVE-2017-8804, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-8804 being actively exploited in the wild?
It is possible that CVE-2017-8804 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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