NVD Vulnerability Detail

CVE-2013-4563

Summary	The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline.
Publication Date	Nov. 20, 2013, 10:19 p.m.
Registration Date	Jan. 26, 2021, 3:43 p.m.
Last Update	Nov. 21, 2024, 10:55 a.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e	Vendor Advisory
2	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e	Vendor Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html	Mailing List Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2013/11/13/9	Mailing List Patch
6	http://www.openwall.com/lists/oss-security/2013/11/13/9	Mailing List Patch
7	http://www.ubuntu.com/usn/USN-2113-1	Third Party Advisory
8	http://www.ubuntu.com/usn/USN-2113-1	Third Party Advisory
9	http://www.ubuntu.com/usn/USN-2117-1	Third Party Advisory
10	http://www.ubuntu.com/usn/USN-2117-1	Third Party Advisory
11	https://bugzilla.redhat.com/show_bug.cgi?id=1030015	Issue Tracking
12	https://bugzilla.redhat.com/show_bug.cgi?id=1030015	Issue Tracking
13	https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e	Exploit Patch
14	https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e	Exploit Patch

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

Linux Kernel の net/ipv6/udp_offload.c の udp6_ufo_fragment 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	Linux Kernel の net/ipv6/udp_offload.c の udp6_ufo_fragment 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	Linux Kernel の net/ipv6/udp_offload.c の udp6_ufo_fragment 関数は、UDP Fragmentation Offload (UFO) が有効な場合、フラグメントヘッダを挿入する前に特定のサイズ比較を適切に実行しないため、サービス運用妨害 (パニック) 状態にされる脆弱性が存在します。
Possible impacts	第三者により、過度に大きな IPv6 UDP パケットを介して、サービス運用妨害 (パニック) 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	Nov. 5, 2013, midnight
Registration Date	Nov. 21, 2013, 3:55 p.m.
Last Update	Nov. 21, 2013, 3:55 p.m.

Affected System

Linux

Linux Kernel 3.12 まで

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-2013-4563	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4563
National Vulnerability Database (NVD)
2	CVE-2013-4563	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4563

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	ipv6: fix headroom calculation in udp6_ufo_fragment	https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e
Linux Kernel
2	Linux Kernel Archives	http://www.kernel.org
Linux kernel source tree
3	ipv6: fix headroom calculation in udp6_ufo_fragment	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0e033e04c2678dbbe74a46b23fffb7bb918c288e
Red Hat Bugzilla
4	Bug 1030015	https://bugzilla.redhat.com/show_bug.cgi?id=1030015

Change Log

No	Changed Details	Date of change
0	[2013年11月21日] 掲載	Feb. 17, 2018, 10:37 a.m.