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.

Score

CVSS 3.0 7.5 High

Status

Modified - cve@mitre.org

Published

2017-05-04

Last modified

2024-08-05

Weaknesses

CWE-770

Affected products

• Libtirpc (Libtirpc Project)
• Ntirpc (Ntirpc Project)
• Rpcbind (Rpcbind Project)

References

• http://openwall.com/lists/oss-security/2017/05/03/12
• http://openwall.com/lists/oss-security/2017/05/04/1
• http://www.debian.org/security/2017/dsa-3845
• http://www.securityfocus.com/bid/98325
• 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-RPCBOMB
• https://github.com/guidovranken/rpcbomb/
• https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/
• 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/