High severity · published May 4, 2017
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…
7.5
CVSS
81.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)81.2% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libtirpc · Libtirpc Project
through 1.0.1 · source: NVD
NT
Ntirpc · Ntirpc Project
through 1.4.3 · source: NVD
RP
Rpcbind · Rpcbind Project
through 0.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-8779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-8779
Mailing List
http://openwall.com/lists/oss-security/2017/05/03/12
Mailing List
http://openwall.com/lists/oss-security/2017/05/04/1
www.debian.org
http://www.debian.org/security/2017/dsa-3845
Third Party Advisory
http://www.securityfocus.com/bid/98325
www.securitytracker.com
http://www.securitytracker.com/id/1038532
access.redhat.com
https://access.redhat.com/errata/RHBA-2017:1497
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