NVD Vulnerability Detail

CVE-2020-14344

Summary	An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.
Publication Date	Aug. 5, 2020, 11:15 p.m.
Registration Date	Jan. 26, 2021, 11:52 a.m.
Last Update	Nov. 21, 2024, 2:03 p.m.

CVSS3.1 : MEDIUM
スコア	6.7
Vector	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	高
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)	高
完全性への影響(I)	高
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	4.6
Vector	AV:L/AC:L/Au:N/C:P/I:P/A:P
攻撃元区分(AV)	ローカル
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)	低
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	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:x.org:libx11::::::::					1.6.10

Configuration2	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:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::

Configuration4	or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:15.2:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00014.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00014.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00015.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00015.html	Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00024.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00024.html	Mailing List Third Party Advisory
7	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00031.html	Mailing List Third Party Advisory
8	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00031.html	Mailing List Third Party Advisory
9	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14344	Issue Tracking Patch Third Party Advisory
10	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14344	Issue Tracking Patch Third Party Advisory
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VDDSAYV7XGNRCXE7HCU23645MG74OFF/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VDDSAYV7XGNRCXE7HCU23645MG74OFF/
13	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
14	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
15	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XY4H2SIEF2362AMNX5ZKWAELGU7LKFJB/
16	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XY4H2SIEF2362AMNX5ZKWAELGU7LKFJB/
17	https://lists.x.org/archives/xorg-announce/2020-July/003050.html	Mailing List Patch Vendor Advisory
18	https://lists.x.org/archives/xorg-announce/2020-July/003050.html	Mailing List Patch Vendor Advisory
19	https://security.gentoo.org/glsa/202008-18	Third Party Advisory
20	https://security.gentoo.org/glsa/202008-18	Third Party Advisory
21	https://usn.ubuntu.com/4487-1/	Third Party Advisory
22	https://usn.ubuntu.com/4487-1/	Third Party Advisory
23	https://usn.ubuntu.com/4487-2/	Third Party Advisory
24	https://usn.ubuntu.com/4487-2/	Third Party Advisory
25	https://www.openwall.com/lists/oss-security/2020/07/31/1	Mailing List Patch Third Party Advisory
26	https://www.openwall.com/lists/oss-security/2020/07/31/1	Mailing List Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-190	整数オーバーフローまたはラップアラウンド	https://cwe.mitre.org/data/definitions/190.html

JVN Vulnerability Information

libX11 における整数オーバーフローの脆弱性

Title	libX11 における整数オーバーフローの脆弱性
Summary	libX11 には、整数オーバーフローの脆弱性が存在します。
Possible impacts	情報を取得される、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	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	July 31, 2020, midnight
Registration Date	Oct. 13, 2020, 6:03 p.m.
Last Update	Oct. 13, 2020, 6:03 p.m.

Affected System

X.Org Foundation

libX11 1.6.10 未満

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-2020-14344	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14344
National Vulnerability Database (NVD)
2	CVE-2020-14344	https://nvd.nist.gov/vuln/detail/CVE-2020-14344

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-190	https://cwe.mitre.org/data/definitions/190.html

ベンダー情報

No	Name	URL
x.org
1	X.Org security advisory: July 31, 2020: libX11	https://lists.x.org/archives/xorg-announce/2020-July/003050.html

その他

No	Name	URL
関連文書
1	Fwd: X.Org security advisory: July 31, 2020: libX11	https://www.openwall.com/lists/oss-security/2020/07/31/1

Change Log

No	Changed Details	Date of change
1	[2020年10月13日] 掲載	Oct. 13, 2020, 6:03 p.m.