Resource Exhaustion Affecting libtirpc package, versions <0:0.2.4-0.8.el7_3
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Test your applications- Snyk ID SNYK-RHEL7-LIBTIRPC-4670352
- published 26 Jul 2021
- disclosed 3 May 2017
Introduced: 3 May 2017
CVE-2017-8779 Open this link in a new tabHow to fix?
Upgrade RHEL:7 libtirpc to version 0:0.2.4-0.8.el7_3 or higher.
This issue was patched in RHSA-2017:1263.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libtirpc package and not the libtirpc package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/98325
- https://security.netapp.com/advisory/ntap-20180109-0001/
- https://access.redhat.com/security/cve/CVE-2017-8779
- http://www.debian.org/security/2017/dsa-3845
- https://www.exploit-db.com/exploits/41974/
- https://security.gentoo.org/glsa/201706-07
- http://openwall.com/lists/oss-security/2017/05/03/12
- http://openwall.com/lists/oss-security/2017/05/04/1
- https://github.com/drbothen/GO-RPCBOMB
- https://github.com/guidovranken/rpcbomb/
- https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/
- https://access.redhat.com/errata/RHBA-2017:1497
- https://access.redhat.com/errata/RHSA-2017:1263
- http://www.securitytracker.com/id/1038532
- https://usn.ubuntu.com/3759-1/
- https://usn.ubuntu.com/3759-2/