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Fencer Intel
high 7.5

CVE-2017-8779 in the critical feed json

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…

published 2017-05-04 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17723

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
81.2%
EPSS 81.2% chance of exploitation in 30 days, percentile 99.6%
public exploits
2
Metasploit, Exploit-DB

Summary

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.

Patch / fix

  • ntirpc Debian 14, Debian 13, Debian 12 1.4.4-1
  • rpcbind Debian 14, Debian 13, Debian 12 0.2.3-0.6
  • libtirpc Debian 14, Debian 13, Debian 12 0.2.5-1.2

debian advisories DEBIAN-CVE-2017-8779

  • rpcbind Ubuntu 18.04 LTS 0.2.3-0.6ubuntu0.18.04.2
  • libtirpc Ubuntu 14.04 LTS 0.2.2-5ubuntu2.1
  • libtirpc Ubuntu 16.04 LTS 0.2.5-1ubuntu0.1
  • rpcbind Ubuntu Pro 14.04 LTS 0.2.1-2ubuntu2.2+esm1
  • rpcbind Ubuntu Pro 16.04 LTS 0.2.3-0.2ubuntu0.16.04.1+esm1

ubuntu advisories UBUNTU-CVE-2017-8779

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libtirpc RHEL 6 0.2.1-13.el6_9
  • rpcbind RHEL 6 0.2.0-13.el6_9
  • libntirpc storage 3.2 1.4.3-4.el6rhs
  • libntirpc storage 3.2 1.4.3-4.el7rhgs
  • ceph ceph storage 2 1:10.2.7-27.el7cp
  • librbd1 ceph storage 2 1:10.2.7-27.el7cp
  • librgw2 ceph storage 2 1:10.2.7-27.el7cp
  • libtcmu ceph storage 2 1.2.1-0.2.20170104.git3d33566.el7cp

red hat advisories RHSA-2017:1268RHSA-2017:1267RHSA-2017:1395RHBA-2017:1497RHSA-2017:1263RHSA-2017:1262

  • rpcbind SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +2 more 0.1.6+git20080930-6.27.2
  • libtirpc SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +3 more 0.2.1-1.12.3
  • rpcbind SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 0.2.1_rc4-17.3.1
  • rpcbind SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +1 more 0.2.3-23.1
  • libtirpc SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +2 more 1.0.1-16.1
  • libtirpc SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 0.2.3-13.3.1

suse advisories SUSE-SU-2017:1468-1SUSE-SU-2017:1336-1SUSE-SU-2017:1328-1SUSE-SU-2017:1314-1SUSE-SU-2017:1306-1

  • rpcbind openSUSE Tumbleweed 1.2.6-2.2

opensuse advisories openSUSE-SU-2024:11304-1

  • rpcbind Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 0.2.4-r0

alpine advisories ALPINE-CVE-2017-8779

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rpcbind Arch Linux 0.2.4-3
  • libtirpc Arch Linux 1.0.1-3

arch linux advisories AVG-261AVG-262

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-8779 updated cvss 7.5

libntirpc: Memory leak when failing to parse XDR strings or bytearrays

  • Red Hat Ceph Storage MON 2 ceph 10.2.7-27.el7cp, librbd1 10.2.7-27.el7cp, librgw2 10.2.7-27.el7cp, ceph-mon 10.2.7-27.el7cp, ceph-base 10.2.7-27.el7cp, ceph-test 10.2.7-27.el7cp, +14 more Red Hat Ceph Storage OSD 2 ceph 10.2.7-27.el7cp, librbd1 10.2.7-27.el7cp, librgw2 10.2.7-27.el7cp, ceph-osd 10.2.7-27.el7cp, ceph-base 10.2.7-27.el7cp, ceph-test 10.2.7-27.el7cp, +8 more Red Hat Ceph Storage Tools 2 ceph 10.2.7-27.el7cp, libntirpc 1.4.3-2.el7, librbd1 10.2.7-27.el7cp, librgw2 10.2.7-27.el7cp, ceph-mds 10.2.7-27.el7cp, pcp-pmda-lio 1.0-2.el7cp, +26 more
    fixed: vendor fix RHBA-2017:1497
  • Red Hat Enterprise Linux Client (v. 7) rpcbind 0.2.0-38.el7_3, libtirpc 0.2.4-0.8.el7_3 Red Hat Enterprise Linux Client Optional (v. 7) libtirpc-devel 0.2.4-0.8.el7_3, libtirpc-debuginfo 0.2.4-0.8.el7_3 Red Hat Enterprise Linux ComputeNode (v. 7) rpcbind 0.2.0-38.el7_3, libtirpc 0.2.4-0.8.el7_3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtirpc-devel 0.2.4-0.8.el7_3, libtirpc-debuginfo 0.2.4-0.8.el7_3
    fixed: vendor fix RHSA-2017:1263
  • Red Hat Enterprise Linux Desktop (v. 6) rpcbind 0.2.0-13.el6_9, libtirpc 0.2.1-13.el6_9 Red Hat Enterprise Linux Desktop Optional (v. 6) libtirpc-devel 0.2.1-13.el6_9, libtirpc-debuginfo 0.2.1-13.el6_9 Red Hat Enterprise Linux HPC Node (v. 6) rpcbind 0.2.0-13.el6_9, libtirpc 0.2.1-13.el6_9 Red Hat Enterprise Linux HPC Node Optional (v. 6) libtirpc-devel 0.2.1-13.el6_9, libtirpc-debuginfo 0.2.1-13.el6_9 Red Hat Enterprise Linux Server (v. 6) rpcbind 0.2.0-13.el6_9, libtirpc 0.2.1-13.el6_9
    fixed: vendor fix RHSA-2017:1268
  • Red Hat Enterprise Linux Server (v. 7) rpcbind 0.2.0-38.el7_3, libtirpc 0.2.4-0.8.el7_3
    fixed: vendor fix RHSA-2017:1263
  • Red Hat Enterprise Linux Server Optional (v. 6) libtirpc-devel 0.2.1-13.el6_9, libtirpc-debuginfo 0.2.1-13.el6_9
    fixed: vendor fix RHSA-2017:1268
  • Red Hat Enterprise Linux Server Optional (v. 7) libtirpc-devel 0.2.4-0.8.el7_3, libtirpc-debuginfo 0.2.4-0.8.el7_3
    fixed: vendor fix RHSA-2017:1263
  • Red Hat Enterprise Linux Workstation (v. 6) rpcbind 0.2.0-13.el6_9, libtirpc 0.2.1-13.el6_9
    fixed: vendor fix RHSA-2017:1268
  • Red Hat Enterprise Linux Workstation (v. 7) rpcbind 0.2.0-38.el7_3, libtirpc 0.2.4-0.8.el7_3
    fixed: vendor fix RHSA-2017:1263
show 3 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) libtirpc-devel 0.2.1-13.el6_9, libtirpc-debuginfo 0.2.1-13.el6_9
    fixed: vendor fix RHSA-2017:1268
  • Red Hat Enterprise Linux Workstation Optional (v. 7) libtirpc-devel 0.2.4-0.8.el7_3, libtirpc-debuginfo 0.2.4-0.8.el7_3
    fixed: vendor fix RHSA-2017:1263
  • Red Hat Gluster Storage NFS 3.2 on RHEL-6 libntirpc 1.4.3-4.el6rhs Red Hat Gluster Storage NFS 3.2 on RHEL-7 libntirpc 1.4.3-4.el7rhgs
    fixed: vendor fix RHSA-2017:1395

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-41974)

Exploit prediction

81.23% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.