NVD Vulnerability Detail

CVE-2015-6251

Summary	Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.
Publication Date	Aug. 24, 2015, 11:59 p.m.
Registration Date	Jan. 26, 2021, 2:54 p.m.
Last Update	Nov. 21, 2024, 11:34 a.m.

Affected software configurations

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:8.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html
2	http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html
3	http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html
4	http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html
5	http://www.debian.org/security/2015/dsa-3334
6	http://www.debian.org/security/2015/dsa-3334
7	http://www.gnutls.org/security.html#GNUTLS-SA-2015-3	Vendor Advisory
8	http://www.gnutls.org/security.html#GNUTLS-SA-2015-3	Vendor Advisory
9	http://www.openwall.com/lists/oss-security/2015/08/10/1
10	http://www.openwall.com/lists/oss-security/2015/08/10/1
11	http://www.openwall.com/lists/oss-security/2015/08/17/6
12	http://www.openwall.com/lists/oss-security/2015/08/17/6
13	http://www.securityfocus.com/bid/76267
14	http://www.securityfocus.com/bid/76267
15	http://www.securitytracker.com/id/1033226
16	http://www.securitytracker.com/id/1033226
17	https://bugzilla.redhat.com/show_bug.cgi?id=1251902
18	https://bugzilla.redhat.com/show_bug.cgi?id=1251902
19	https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12
20	https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12

Common Vulnerabilities List

JVN Vulnerability Information

GnuTLS におけるメモリ二重解放の脆弱性

Title	GnuTLS におけるメモリ二重解放の脆弱性
Summary	GnuTLS には、メモリを二重に解放する不備があるため、サービス運用妨害 (DoS) 状態にされる脆弱性が存在します。補足情報 : CWE による脆弱性タイプは、CWE-415: Double Free (二重解放) と識別されています。 http://cwe.mitre.org/data/definitions/415.html
Possible impacts	第三者により、証明書の過度に長い DistinguishedName (DN) エントリを介して、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 20, 2015, midnight
Registration Date	Aug. 27, 2015, 5:10 p.m.
Last Update	Aug. 27, 2015, 5:10 p.m.

Affected System

GNU Project

GnuTLS 3.3.17 未満

GnuTLS 3.4.4 未満の 3.4.x

Debian

Debian GNU/Linux 8.0

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-2015-6251	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6251
National Vulnerability Database (NVD)
2	CVE-2015-6251	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-6251

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-Other	https://www.ipa.go.jp/security/vuln/CWE.html#CWEOther

ベンダー情報

No	Name	URL
Debian Security Advisory
1	DSA-3334	http://www.debian.org/security/2015/dsa-3334
GnuTLS
2	GNUTLS-SA-2015-3	http://www.gnutls.org/security.html#GNUTLS-SA-2015-3
3	Reset the output value on error in _gnutls_x509_dn_to_string()	https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12
Red Hat Bugzilla
4	Bug 1251902	https://bugzilla.redhat.com/show_bug.cgi?id=1251902

Change Log

No	Changed Details	Date of change
0	[2015年08月27日] 掲載	Feb. 17, 2018, 10:37 a.m.