製品・ソフトウェアに関する情報

JVN脆弱性詳細

LibVNCServer の rfbserver.c の File Transfer 機能におけるスタックベースのバッファオーバーフローの脆弱性

Title	LibVNCServer の rfbserver.c の File Transfer 機能におけるスタックベースのバッファオーバーフローの脆弱性
Summary	LibVNCServer の rfbserver.c の File Transfer 機能には、スタックベースのバッファオーバーフローの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、rfbFileTransferOffer メッセージ内の過度に長い (1) ファイル名、(2) ディレクトリ名、または (3) FileTime 属性を介して、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	Sept. 1, 2014, midnight
Registration Date	Oct. 3, 2014, 2:24 p.m.
Last Update	May 25, 2015, 5:26 p.m.

CVSS2.0 : 警告
Score	6.5
Vector	AV:N/AC:L/Au:S/C:P/I:P/A:P

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-2014-6055	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6055
National Vulnerability Database (NVD)
2	CVE-2014-6055	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6055

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-119	https://jvndb.jvn.jp/ja/cwe/CWE-119.html

ベンダー情報

No	Name	URL
GitHub
1	Fix multiple stack-based buffer overflows in file transfer feature	https://github.com/newsoft/libvncserver/commit/06ccdf016154fde8eccb5355613ba04c59127b2e
Red Hat Security Advisory
2	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	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2014-6055

Summary	Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.
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.

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:20:::::::*
cpe:2.3:o:fedoraproject:fedora:21:::::::*

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:7.0:::::::*

Configuration3	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:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:a:libvncserver:libvncserver::::::::			0.9.9

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	Mailing List Third Party Advisory
10	http://seclists.org/oss-sec/2014/q3/639	Mailing List Third Party Advisory
11	http://secunia.com/advisories/61506
12	http://secunia.com/advisories/61506
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	Third Party Advisory US Government Resource
16	http://www.ocert.org/advisories/ocert-2014-007.html	Third Party Advisory US Government Resource
17	http://www.openwall.com/lists/oss-security/2014/09/25/11	Mailing List Third Party Advisory
18	http://www.openwall.com/lists/oss-security/2014/09/25/11	Mailing List Third Party Advisory
19	http://www.securityfocus.com/bid/70096	Third Party Advisory VDB Entry
20	http://www.securityfocus.com/bid/70096	Third Party Advisory VDB Entry
21	https://exchange.xforce.ibmcloud.com/vulnerabilities/96187
22	https://exchange.xforce.ibmcloud.com/vulnerabilities/96187
23	https://github.com/newsoft/libvncserver/commit/06ccdf016154fde8eccb5355613ba04c59127b2e	Issue Tracking Patch
24	https://github.com/newsoft/libvncserver/commit/06ccdf016154fde8eccb5355613ba04c59127b2e	Issue Tracking Patch
25	https://github.com/newsoft/libvncserver/commit/f528072216dec01cee7ca35d94e171a3b909e677	Issue Tracking Patch
26	https://github.com/newsoft/libvncserver/commit/f528072216dec01cee7ca35d94e171a3b909e677	Issue Tracking Patch
27	https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
28	https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
29	https://security.gentoo.org/glsa/201507-07
30	https://security.gentoo.org/glsa/201507-07
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	Issue Tracking Patch
34	https://www.kde.org/info/security/advisory-20140923-1.txt	Issue Tracking Patch

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-119	バッファエラー	https://cwe.mitre.org/data/definitions/118.html