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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 81.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 81.23% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 8 May 2017
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- rpcbind project/rpcbind · libtirpc project/libtirpc · ntirpc project/ntirpc
- Source
- cve@mitre.org
EPSS moved from 80.1% on 21 September 2026 to 81.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://openwall.com/lists/oss-security/2017/05/03/12Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2017/05/04/1Mailing List, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3845
- http://www.securityfocus.com/bid/98325Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038532
- https://access.redhat.com/errata/RHBA-2017:1497
- https://access.redhat.com/errata/RHSA-2017:1262
- https://access.redhat.com/errata/RHSA-2017:1263
- https://access.redhat.com/errata/RHSA-2017:1267
- https://access.redhat.com/errata/RHSA-2017:1268
- https://access.redhat.com/errata/RHSA-2017:1395
- https://github.com/drbothen/GO-RPCBOMBIssue Tracking, Patch, Third Party Advisory
- https://github.com/guidovranken/rpcbomb/Issue Tracking, Patch, Third Party Advisory
- https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/Third Party Advisory
- https://security.gentoo.org/glsa/201706-07
- https://security.netapp.com/advisory/ntap-20180109-0001/
- https://usn.ubuntu.com/3759-1/
- https://usn.ubuntu.com/3759-2/
- https://www.exploit-db.com/exploits/41974/
- http://openwall.com/lists/oss-security/2017/05/03/12Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2017/05/04/1Mailing List, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3845
- http://www.securityfocus.com/bid/98325Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038532
- https://access.redhat.com/errata/RHBA-2017:1497
- https://access.redhat.com/errata/RHSA-2017:1262
- https://access.redhat.com/errata/RHSA-2017:1263
- https://access.redhat.com/errata/RHSA-2017:1267
- https://access.redhat.com/errata/RHSA-2017:1268
- https://access.redhat.com/errata/RHSA-2017:1395
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.