NVD Vulnerability Detail

CVE-2017-8779

Summary	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.
Publication Date	May 4, 2017, 11:29 p.m.
Registration Date	Jan. 26, 2021, 1:30 p.m.
Last Update	Nov. 21, 2024, 12:34 p.m.

CVSS3.0 : HIGH
スコア	7.5
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	高

CVSS2.0 : HIGH
Score	7.8
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:C
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	高
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:rpcbind_project:rpcbind::::::::			0.2.4

Configuration2		or higher	or less	more than	less than
cpe:2.3:a:libtirpc_project:libtirpc::::::::			1.0.1

Configuration3		or higher	or less	more than	less than
cpe:2.3:a:ntirpc_project:ntirpc::::::::			1.4.3

Related information, measures and tools

No	URL	タグ
1	http://openwall.com/lists/oss-security/2017/05/03/12	Mailing List Patch Third Party Advisory
2	http://openwall.com/lists/oss-security/2017/05/03/12	Mailing List Patch Third Party Advisory
3	http://openwall.com/lists/oss-security/2017/05/04/1	Mailing List Patch Third Party Advisory
4	http://openwall.com/lists/oss-security/2017/05/04/1	Mailing List Patch Third Party Advisory
5	http://www.debian.org/security/2017/dsa-3845
6	http://www.debian.org/security/2017/dsa-3845
7	http://www.securityfocus.com/bid/98325	Third Party Advisory VDB Entry
8	http://www.securityfocus.com/bid/98325	Third Party Advisory VDB Entry
9	http://www.securitytracker.com/id/1038532
10	http://www.securitytracker.com/id/1038532
11	https://access.redhat.com/errata/RHBA-2017:1497
12	https://access.redhat.com/errata/RHBA-2017:1497
13	https://access.redhat.com/errata/RHSA-2017:1262
14	https://access.redhat.com/errata/RHSA-2017:1262
15	https://access.redhat.com/errata/RHSA-2017:1263
16	https://access.redhat.com/errata/RHSA-2017:1263
17	https://access.redhat.com/errata/RHSA-2017:1267
18	https://access.redhat.com/errata/RHSA-2017:1267
19	https://access.redhat.com/errata/RHSA-2017:1268
20	https://access.redhat.com/errata/RHSA-2017:1268
21	https://access.redhat.com/errata/RHSA-2017:1395
22	https://access.redhat.com/errata/RHSA-2017:1395
23	https://github.com/drbothen/GO-RPCBOMB	Issue Tracking Patch Third Party Advisory
24	https://github.com/drbothen/GO-RPCBOMB	Issue Tracking Patch Third Party Advisory
25	https://github.com/guidovranken/rpcbomb/	Issue Tracking Patch Third Party Advisory
26	https://github.com/guidovranken/rpcbomb/	Issue Tracking Patch Third Party Advisory
27	https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/	Third Party Advisory
28	https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/	Third Party Advisory
29	https://security.gentoo.org/glsa/201706-07
30	https://security.gentoo.org/glsa/201706-07
31	https://security.netapp.com/advisory/ntap-20180109-0001/
32	https://security.netapp.com/advisory/ntap-20180109-0001/
33	https://usn.ubuntu.com/3759-1/
34	https://usn.ubuntu.com/3759-1/
35	https://usn.ubuntu.com/3759-2/
36	https://usn.ubuntu.com/3759-2/
37	https://www.exploit-db.com/exploits/41974/
38	https://www.exploit-db.com/exploits/41974/

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-770	制限またはスロットリング無しのリソースの割り当て	https://cwe.mitre.org/data/definitions/770.html

JVN Vulnerability Information

rpcbind などの製品におけるリソース管理に関する脆弱性

Title	rpcbind などの製品におけるリソース管理に関する脆弱性
Summary	rpcbind、LIBTIRPC、および NTIRPC には、リソース管理に関する脆弱性が存在します。
Possible impacts	サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date	May 3, 2017, midnight
Registration Date	June 12, 2017, 3:33 p.m.
Last Update	June 12, 2017, 3:33 p.m.

Affected System

rpcbind project

rpcbind 0.2.4 まで

libtirpc project

LIBTIRPC 1.0.1 まで

LIBTIRPC 1.0.2-rc3 までの 1.0.2-rc

ntirpc project

NTIRPC 1.4.3 まで

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2017-8779	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8779
GitHub
2	CVE-2017-8779 aka RPCBomb	https://github.com/drbothen/GO-RPCBOMB
National Vulnerability Database (NVD)
3	CVE-2017-8779	https://nvd.nist.gov/vuln/detail/CVE-2017-8779

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-399	https://jvndb.jvn.jp/ja/cwe/CWE-399.html

ベンダー情報

No	Name	URL
GitHub
1	linuxbox2/ntirpc	https://github.com/linuxbox2/ntirpc
2	RPCBOMB + patches	https://github.com/guidovranken/rpcbomb/
SourceForge
3	libtirpc	https://sourceforge.net/projects/libtirpc/

その他

No	Name	URL
関連文書
1	rpcbomb: remote rpcbind denial-of-service + patches	https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/

Change Log

No	Changed Details	Date of change
0	[2017年06月12日] 掲載	Feb. 17, 2018, 10:37 a.m.