NVD Vulnerability Detail

CVE-2017-18926

Summary	raptor_xml_writer_start_element_common in raptor_xml_writer.c in Raptor RDF Syntax Library 2.0.15 miscalculates the maximum nspace declarations for the XML writer, leading to heap-based buffer overflows (sometimes seen in raptor_qname_format_as_xml).
Publication Date	Nov. 7, 2020, 3:15 a.m.
Registration Date	Jan. 26, 2021, 1:21 p.m.
Last Update	Nov. 21, 2024, 12:21 p.m.

CVSS3.1 : HIGH
スコア	7.1
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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)	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)	低
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	5.8
Vector	AV:N/AC:M/Au:N/C:N/I:P/A:P
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
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)	低
可用性への影響(A)	低
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	はい

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:librdf:raptor_rdf_syntax_library:2.0.15:::::::*

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:31:::::::*
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*

Related information, measures and tools

No	URL	タグ
1	http://www.openwall.com/lists/oss-security/2020/11/13/1	Mailing List Third Party Advisory
2	http://www.openwall.com/lists/oss-security/2020/11/13/1	Mailing List Third Party Advisory
3	http://www.openwall.com/lists/oss-security/2020/11/13/2	Mailing List Third Party Advisory
4	http://www.openwall.com/lists/oss-security/2020/11/13/2	Mailing List Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2020/11/14/2	Mailing List Third Party Advisory
6	http://www.openwall.com/lists/oss-security/2020/11/14/2	Mailing List Third Party Advisory
7	http://www.openwall.com/lists/oss-security/2020/11/16/2	Mailing List Third Party Advisory
8	http://www.openwall.com/lists/oss-security/2020/11/16/2	Mailing List Third Party Advisory
9	http://www.openwall.com/lists/oss-security/2020/11/16/3	Mailing List Third Party Advisory
10	http://www.openwall.com/lists/oss-security/2020/11/16/3	Mailing List Third Party Advisory
11	https://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1	Patch Third Party Advisory
12	https://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1	Patch Third Party Advisory
13	https://lists.debian.org/debian-lts-announce/2020/11/msg00012.html	Mailing List Third Party Advisory
14	https://lists.debian.org/debian-lts-announce/2020/11/msg00012.html	Mailing List Third Party Advisory
15	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/
16	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/
17	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/
18	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/
19	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/
20	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/
21	https://www.debian.org/security/2020/dsa-4785	Third Party Advisory
22	https://www.debian.org/security/2020/dsa-4785	Third Party Advisory
23	https://www.openwall.com/lists/oss-security/2017/06/07/1	Exploit Mailing List Patch Third Party Advisory
24	https://www.openwall.com/lists/oss-security/2017/06/07/1	Exploit Mailing List Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

Raptor RDF Syntax Library における境界外書き込みに関する脆弱性

Title	Raptor RDF Syntax Library における境界外書き込みに関する脆弱性
Summary	Raptor RDF Syntax Library には、境界外書き込みに関する脆弱性が存在します。
Possible impacts	情報を改ざんされる、およびサービス運用妨害 (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	April 19, 2017, midnight
Registration Date	June 21, 2021, 4:36 p.m.
Last Update	June 21, 2021, 4:36 p.m.

Affected System

Debian

Debian GNU/Linux

Redland

Redland Raptor 2.0.15

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-2017-18926	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18926
National Vulnerability Database (NVD)
2	CVE-2017-18926	https://nvd.nist.gov/vuln/detail/CVE-2017-18926

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
Debian
1	[SECURITY] [DLA 2438-1] raptor2 security update	https://lists.debian.org/debian-lts-announce/2020/11/msg00012.html
Debian Security Advisory
2	DSA-4785-1	https://www.debian.org/security/2020/dsa-4785
Redland
3	Raptor RDF Syntax Library	https://librdf.org/raptor/

その他

No	Name	URL
関連文書
1	core/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1	https://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1
2	two heap overflows in raptor	https://www.openwall.com/lists/oss-security/2017/06/07/1

Change Log

No	Changed Details	Date of change
1	[2021年06月21日] 掲載	June 21, 2021, 4:36 p.m.