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CVE-2017-8779

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4986-2
Posted Jun 10, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4986-2 - USN-4986-1 fixed a vulnerability in rpcbind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. It was discovered that rpcbind incorrectly handled certain large data sizes. A remote attacker could use this issue to cause rpcbind to consume resources, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2017-8779
MD5 | f64dfbe9dd90729f061e62aa07a702bc
Ubuntu Security Notice USN-4986-1
Posted Jun 9, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4986-1 - It was discovered that rpcbind incorrectly handled certain large data sizes. A remote attacker could use this issue to cause rpcbind to consume resources, leading to a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2017-8779
MD5 | 2d41b465465adc3f25b4a1ccaaca2bf1
Ubuntu Security Notice USN-3759-2
Posted Sep 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3759-2 - USN-3759-1 fixed a vulnerability in libtirpc. This update provides the corresponding update for Ubuntu 12.04 ESM. Aldy Hernandez discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2016-4429, CVE-2017-8779, CVE-2018-14622
MD5 | 72238c9ecf90f216a9e954eb26dc3252
Ubuntu Security Notice USN-3759-1
Posted Sep 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3759-1 - Aldy Hernandez discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. It was discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2016-4429, CVE-2017-8779, CVE-2018-14622
MD5 | 3faa990fcb5a94a1d6b91126071d7cfc
Red Hat Security Advisory 2017-1395-01
Posted Jun 6, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1395-01 - This package contains a new implementation of the original libtirpc, transport-independent RPC library for NFS-Ganesha. Security Fix: It was found that due to the way rpcbind uses libtirpc, a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.

tags | advisory, memory leak
systems | linux, redhat
advisories | CVE-2017-8779
MD5 | beff9ee6fcb4b02422284889ee84c8c5
Gentoo Linux Security Advisory 201706-07
Posted Jun 6, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201706-7 - A vulnerability has been found in Libtirpc and RPCBind which may allow a remote attacker to cause a Denial of Service condition. Versions less than 0.2.4-r are affected.

tags | advisory, remote, denial of service
systems | linux, gentoo
advisories | CVE-2017-8779
MD5 | 71e821b697581a4fb146270ae8aa5855
Red Hat Security Advisory 2017-1268-01
Posted May 24, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1268-01 - The libtirpc packages contain SunLib's implementation of transport-independent remote procedure call documentation, which includes a library required by programs in the nfs-utils and rpcbind packages. Security Fix: It was found that due to the way rpcbind uses libtirpc, a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.

tags | advisory, remote, memory leak
systems | linux, redhat
advisories | CVE-2017-8779
MD5 | c0ba90177a3d946241d390ed82ceec48
Red Hat Security Advisory 2017-1267-01
Posted May 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1267-01 - The rpcbind utility is a server that converts Remote Procedure Call program numbers into universal addresses. It must be running on the host to be able to make RPC calls on a server on that machine. Security Fix: It was found that due to the way rpcbind uses libtirpc, a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.

tags | advisory, remote, memory leak
systems | linux, redhat
advisories | CVE-2017-8779
MD5 | f12a37161d0be834040c1845b07d62f4
Red Hat Security Advisory 2017-1262-01
Posted May 22, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1262-01 - The rpcbind utility is a server that converts Remote Procedure Call program numbers into universal addresses. It must be running on the host to be able to make RPC calls on a server on that machine. Security Fix: It was found that due to the way rpcbind uses libtirpc, a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.

tags | advisory, remote, memory leak
systems | linux, redhat
advisories | CVE-2017-8779
MD5 | d7066d82fa5c66fdf39eec036fbe66da
Red Hat Security Advisory 2017-1263-01
Posted May 22, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1263-01 - The libtirpc packages contain SunLib's implementation of transport-independent remote procedure call documentation, which includes a library required by programs in the nfs-utils and rpcbind packages. Security Fix: It was found that due to the way rpcbind uses libtirpc, a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.

tags | advisory, remote, memory leak
systems | linux, redhat
advisories | CVE-2017-8779
MD5 | a9e7d4f0f42fe092cf47afd3b014fefe
Debian Security Advisory 3845-1
Posted May 9, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3845-1 - Guido Vranken discovered that incorrect memory management in libtirpc, a transport-independent RPC library used by rpcbind and other programs may result in denial of service via memory exhaustion (depending on memory management settings).

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2017-8779
MD5 | 62063a27984ce9c4d8b78c93b448de27
RPCBind / libtirpc Denial Of Service
Posted May 8, 2017
Authored by Guido Vranken

RPCBind / libtirpc denial of service exploit.

tags | exploit, denial of service
advisories | CVE-2017-8779
MD5 | ee3c32ca9332dd9d15b38a3e40f1ab8f
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