Resource Exhaustion Affecting librbd1 package, versions <1:10.2.7-27.el7cp
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-LIBRBD1-4443875
- published26 Jul 2021
- disclosed3 May 2017
Introduced: 3 May 2017
CVE-2017-8779 (opens in a new tab)How to fix?
Upgrade RHEL:7 librbd1 to version 1:10.2.7-27.el7cp or higher.
This issue was patched in RHBA-2017:1497.
NVD Description
Note: Versions mentioned in the description apply only to the upstream librbd1 package and not the librbd1 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
- http://www.securitytracker.com/id/1038532
- https://usn.ubuntu.com/3759-1/
- https://usn.ubuntu.com/3759-2/