NVD Vulnerability Detail

CVE-2014-6051

Summary	Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.
Publication Date	Oct. 1, 2014, 1:55 a.m.
Registration Date	Jan. 26, 2021, 3:15 p.m.
Last Update	Nov. 21, 2024, 11:13 a.m.

CVSS2.0 : HIGH
Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/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)	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:o:redhat:enterprise_linux_server_eus:6.5.z:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:::::::*

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:20:::::::*
cpe:2.3:o:fedoraproject:fedora:21:::::::*

Configuration3		or higher	or less	more than	less than
cpe:2.3:a:libvncserver:libvncserver::::::::			0.9.9

Configuration4		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:7.0:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:o:oracle:solaris:11.3:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html	Third Party Advisory
2	http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html	Third Party Advisory
3	http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html	Third Party Advisory
4	http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html	Third Party Advisory
5	http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
6	http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
7	http://rhn.redhat.com/errata/RHSA-2015-0113.html	Third Party Advisory
8	http://rhn.redhat.com/errata/RHSA-2015-0113.html	Third Party Advisory
9	http://seclists.org/oss-sec/2014/q3/639	Third Party Advisory
10	http://seclists.org/oss-sec/2014/q3/639	Third Party Advisory
11	http://secunia.com/advisories/61506	Permissions Required Third Party Advisory
12	http://secunia.com/advisories/61506	Permissions Required Third Party Advisory
13	http://www.debian.org/security/2014/dsa-3081	Third Party Advisory
14	http://www.debian.org/security/2014/dsa-3081	Third Party Advisory
15	http://www.ocert.org/advisories/ocert-2014-007.html	Patch Third Party Advisory US Government Resource
16	http://www.ocert.org/advisories/ocert-2014-007.html	Patch Third Party Advisory US Government Resource
17	http://www.openwall.com/lists/oss-security/2014/09/25/11	Third Party Advisory
18	http://www.openwall.com/lists/oss-security/2014/09/25/11	Third Party Advisory
19	http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html	Third Party Advisory
20	http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html	Third Party Advisory
21	http://www.securityfocus.com/bid/70093
22	http://www.securityfocus.com/bid/70093
23	https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273	Patch Third Party Advisory
24	https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273	Patch Third Party Advisory
25	https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
26	https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
27	https://security.gentoo.org/glsa/201507-07
28	https://security.gentoo.org/glsa/201507-07
29	https://security.gentoo.org/glsa/201612-36
30	https://security.gentoo.org/glsa/201612-36
31	https://usn.ubuntu.com/4587-1/
32	https://usn.ubuntu.com/4587-1/
33	https://www.kde.org/info/security/advisory-20140923-1.txt	Third Party Advisory
34	https://www.kde.org/info/security/advisory-20140923-1.txt	Third Party Advisory

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

LibVNCServer の vncviewer.c の MallocFrameBuffer 関数における整数オーバーフローの脆弱性

Title	LibVNCServer の vncviewer.c の MallocFrameBuffer 関数における整数オーバーフローの脆弱性
Summary	LibVNCServer の vncviewer.c の MallocFrameBuffer 関数には、整数オーバーフローの脆弱性が存在します。
Possible impacts	リモート VNC サービスにより、過度に大きなスクリーンサイズの広告を介して、ヒープベースのバッファオーバーフローを誘発されることで、サービス運用妨害 (クラッシュ) 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	Aug. 15, 2014, midnight
Registration Date	Oct. 3, 2014, 2:24 p.m.
Last Update	Nov. 6, 2015, 3:43 p.m.

Affected System

LibVNC

LibVNCServer 0.9.9 およびそれ以前

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-2014-6051	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6051
National Vulnerability Database (NVD)
2	CVE-2014-6051	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6051

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
GitHub
1	Fix integer overflow in MallocFrameBuffer()	https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273
Oracle Technology Network
2	Oracle Solaris Third Party Bulletin - October 2015	http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
Red Hat Security Advisory
3	RHSA-2015:0113	https://rhn.redhat.com/errata/RHSA-2015-0113.html

Change Log

No	Changed Details	Date of change
0	[2014年10月03日] 掲載 [2015年05月25日] ベンダ情報：レッドハット (RHSA-2015:0113) を追加 [2015年11月06日] ベンダ情報：オラクル (Oracle Solaris Third Party Bulletin - October 2015) を追加	Feb. 17, 2018, 10:37 a.m.