製品・ソフトウェアに関する情報

JVN脆弱性詳細

Linux Kernel の lib/asn1_decoder.c の asn1_ber_decoder 関数におけるサービス運用妨害 (DoS) の脆弱性

タイトル	Linux Kernel の lib/asn1_decoder.c の asn1_ber_decoder 関数におけるサービス運用妨害 (DoS) の脆弱性
概要	Linux Kernel の lib/asn1_decoder.c の asn1_ber_decoder 関数には、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。
想定される影響	攻撃者により、公開鍵のない ASN.1 BER ファイルを介して、crypto/asymmetric_keys/public_key.c の public_key_verify_signature 関数によって誤った処理を引き起こされることで、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。
対策	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。
公表日	2016年1月20日0:00
登録日	2016年5月11日16:56
最終更新日	2016年5月11日16:56

CVSS3.0 : 警告
スコア	5.9
ベクター	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS2.0 : 危険
スコア	7.1
ベクター	AV:N/AC:M/Au:N/C:N/I:N/A:C

影響を受けるシステム

Linux

Linux Kernel 4.3 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	名前	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2016-2053	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2053
National Vulnerability Database (NVD)
2	CVE-2016-2053	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2053

CWE (共通脆弱性タイプ一覧)

No	名前	URL
JVNDB
1	CWE-310	https://jvndb.jvn.jp/ja/cwe/CWE-310.html

ベンダー情報

No	名前	URL
GitHub
1	ASN.1: Fix non-match detection failure on data overrun	https://github.com/torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f
Linux Kernel
2	Linux Kernel Archives	http://www.kernel.org
Linux kernel source tree
3	ASN.1: Fix non-match detection failure on data overrun	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f
Red Hat Bugzilla
4	Bug 1300237	https://bugzilla.redhat.com/show_bug.cgi?id=1300237

変更履歴

No	変更内容	変更日
0	[2016年05月11日] 掲載	2018年2月17日10:37

NVD脆弱性情報

CVE-2016-2053

概要	The asn1_ber_decoder function in lib/asn1_decoder.c in the Linux kernel before 4.3 allows attackers to cause a denial of service (panic) via an ASN.1 BER file that lacks a public key, leading to mishandling by the public_key_verify_signature function in crypto/asymmetric_keys/public_key.c.
公表日	2016年5月2日19:59
登録日	2021年1月26日14:08
最終更新日	2024年11月21日11:47

影響を受けるソフトウェアの構成

構成1		以上	以下	より上	未満
cpe:2.3:o:linux:linux_kernel::::::::					4.3

関連情報、対策とツール

No	URL	タグ
1	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f	Vendor Advisory
2	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f	Vendor Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html	Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html	Mailing List Third Party Advisory
7	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html	Mailing List Third Party Advisory
8	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html	Mailing List Third Party Advisory
9	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html	Mailing List Third Party Advisory
10	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html	Mailing List Third Party Advisory
11	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html	Mailing List Third Party Advisory
12	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html	Mailing List Third Party Advisory
13	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html	Mailing List Third Party Advisory
14	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html	Mailing List Third Party Advisory
15	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html	Mailing List Third Party Advisory
16	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html	Mailing List Third Party Advisory
17	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html	Mailing List Third Party Advisory
18	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html	Mailing List Third Party Advisory
19	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html	Mailing List Third Party Advisory
20	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html	Mailing List Third Party Advisory
21	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html	Mailing List Third Party Advisory
22	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html	Mailing List Third Party Advisory
23	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html	Mailing List Third Party Advisory
24	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html	Mailing List Third Party Advisory
25	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html	Mailing List Third Party Advisory
26	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html	Mailing List Third Party Advisory
27	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html	Mailing List Third Party Advisory
28	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html	Mailing List Third Party Advisory
29	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html	Mailing List Third Party Advisory
30	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html	Mailing List Third Party Advisory
31	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html	Mailing List Third Party Advisory
32	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html	Mailing List Third Party Advisory
33	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html	Mailing List Third Party Advisory
34	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html	Mailing List Third Party Advisory
35	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html	Mailing List Third Party Advisory
36	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html	Mailing List Third Party Advisory
37	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html	Mailing List Third Party Advisory
38	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html	Mailing List Third Party Advisory
39	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html	Mailing List Third Party Advisory
40	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html	Mailing List Third Party Advisory
41	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html	Mailing List Third Party Advisory
42	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html	Mailing List Third Party Advisory
43	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html	Mailing List Third Party Advisory
44	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html	Mailing List Third Party Advisory
45	http://rhn.redhat.com/errata/RHSA-2016-2574.html	Third Party Advisory
46	http://rhn.redhat.com/errata/RHSA-2016-2574.html	Third Party Advisory
47	http://rhn.redhat.com/errata/RHSA-2016-2584.html	Third Party Advisory
48	http://rhn.redhat.com/errata/RHSA-2016-2584.html	Third Party Advisory
49	http://www.openwall.com/lists/oss-security/2016/01/25/4	Mailing List Third Party Advisory
50	http://www.openwall.com/lists/oss-security/2016/01/25/4	Mailing List Third Party Advisory
51	http://www.securitytracker.com/id/1036763	Third Party Advisory VDB Entry
52	http://www.securitytracker.com/id/1036763	Third Party Advisory VDB Entry
53	https://bugzilla.redhat.com/show_bug.cgi?id=1300237	Issue Tracking Third Party Advisory
54	https://bugzilla.redhat.com/show_bug.cgi?id=1300237	Issue Tracking Third Party Advisory
55	https://github.com/torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f	Patch Vendor Advisory
56	https://github.com/torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f	Patch Vendor Advisory

共通脆弱性一覧