NVD Vulnerability Detail

CVE-2015-1804

Summary	The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.
Publication Date	March 20, 2015, 11:59 p.m.
Registration Date	Jan. 26, 2021, 2:46 p.m.
Last Update	Nov. 21, 2024, 11:26 a.m.

CVSS2.0 : HIGH
Score	8.5
Vector	AV:N/AC:M/Au:S/C:C/I:C/A:C
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)	単一
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
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:x:libxfont::::::::			1.4.8
cpe:2.3:a:x:libxfont:1.5.0:::::::*
execution environment
1	cpe:2.3:o:canonical:ubuntu_linux:10.04::::lts:::
2	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
3	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
4	cpe:2.3:o:canonical:ubuntu_linux:14.10:::::::*
5	cpe:2.3:o:debian:debian_linux:7.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://advisories.mageia.org/MGASA-2015-0113.html
2	http://advisories.mageia.org/MGASA-2015-0113.html
3	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
4	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
5	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
6	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
7	http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
8	http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
9	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
10	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
11	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
12	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
13	http://lists.opensuse.org/opensuse-updates/2015-12/msg00074.html
14	http://lists.opensuse.org/opensuse-updates/2015-12/msg00074.html
15	http://rhn.redhat.com/errata/RHSA-2015-1708.html
16	http://rhn.redhat.com/errata/RHSA-2015-1708.html
17	http://www.debian.org/security/2015/dsa-3194
18	http://www.debian.org/security/2015/dsa-3194
19	http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
20	http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
21	http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
22	http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
23	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
24	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
25	http://www.securityfocus.com/bid/73279
26	http://www.securityfocus.com/bid/73279
27	http://www.securitytracker.com/id/1031935
28	http://www.securitytracker.com/id/1031935
29	http://www.ubuntu.com/usn/USN-2536-1
30	http://www.ubuntu.com/usn/USN-2536-1
31	http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/	Vendor Advisory
32	http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/	Vendor Advisory
33	https://security.gentoo.org/glsa/201507-21
34	https://security.gentoo.org/glsa/201507-21

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-189	数値処理の問題	https://cwe.mitre.org/data/definitions/189.html

JVN Vulnerability Information

X.Org libXfont の bitmap/bdfread.c の bdfReadCharacters 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	X.Org libXfont の bitmap/bdfread.c の bdfReadCharacters 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	X.Org libXfont の bitmap/bdfread.c の bdfReadCharacters 関数は、メトリクス値の型の変換を適切に行わないため、サービス運用妨害 (メモリ領域外へのアクセス) 状態にされる、および任意のコードを実行される脆弱性が存在します。
Possible impacts	リモート認証されたユーザにより、巧妙に細工された BDF フォントファイルを介して、サービス運用妨害 (メモリ領域外へのアクセス) 状態にされる、および任意のコードを実行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	March 17, 2015, midnight
Registration Date	March 24, 2015, 3:07 p.m.
Last Update	July 29, 2015, 5:41 p.m.

Affected System

オラクル

Oracle Virtualization の Oracle Secure Global Desktop 4.63

Oracle Virtualization の Oracle Secure Global Desktop 4.71

Oracle Virtualization の Oracle Secure Global Desktop 5.1

Oracle Virtualization の Oracle Secure Global Desktop 5.2

X.Org Foundation

libXfont 1.4.9 未満

libXfont 1.5.1 未満の 1.5.x

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-2015-1804	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1804
National Vulnerability Database (NVD)
2	CVE-2015-1804	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1804

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-189	https://jvndb.jvn.jp/ja/cwe/CWE-189.html

ベンダー情報

No	Name	URL
Oracle Critical Patch Update
1	Oracle Critical Patch Update Advisory - July 2015	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
2	Text Form of Oracle Critical Patch Update - July 2015 Risk Matrices	http://www.oracle.com/technetwork/topics/security/cpujul2015verbose-2367947.html
SECURITY BLOG
3	July 2015 Critical Patch Update Released	https://blogs.oracle.com/security/entry/july_2015_critical_patch_update
X.Org Security Advisory
4	Advisory-2015-03-17	http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/

Change Log

No	Changed Details	Date of change
0	[2015年03月24日] 掲載 [2015年07月29日] 影響を受けるシステム：ベンダ情報の追加に伴い内容を更新ベンダ情報：オラクル (Oracle Critical Patch Update Advisory - July 2015) を追加ベンダ情報：オラクル (Text Form of Oracle Critical Patch Update - July 2015 Risk Matrices) を追加ベンダ情報：オラクル (July 2015 Critical Patch Update Released) を追加	Feb. 17, 2018, 10:37 a.m.