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CVE-2017-8779

UnknownEPSS 81.92%

Last modified

CVE-2017-8779 is a vulnerability of currently unknown severity. rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.. EPSS estimates a 81.92% chance of exploitation in the next 30 days.

Description

rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.

Metrics

EPSS Probability
81.92%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Rpcbind ProjectRpcbind<= 0.2.4
Libtirpc ProjectLibtirpc<= 1.0.1
Ntirpc ProjectNtirpc<= 1.4.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-8779?
rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.
How severe is CVE-2017-8779?
Severity scoring for CVE-2017-8779 is pending analysis. The EPSS model estimates a 81.92% probability of exploitation in the next 30 days.
How do I fix CVE-2017-8779?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8779?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST