NVD脆弱性詳細

CVE-2020-26164

概要	In kdeconnect-kde (aka KDE Connect) before 20.08.2, an attacker on the local network could send crafted packets that trigger use of large amounts of CPU, memory, or network connection slots, aka a Denial of Service attack.
公表日	2020年10月8日4:15
登録日	2021年1月26日11:55
最終更新日	2024年11月21日14:19

CVSS3.1 : MEDIUM
スコア	5.5
ベクター	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	低
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	高

CVSS2.0 : MEDIUM
スコア	4.9
ベクター	AV:L/AC:L/Au:N/C:N/I:N/A:C
攻撃元区分(AV)	ローカル
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)	なし
完全性への影響(I)	なし
可用性への影響(A)	高
全ての特権を取得	いいえ
ユーザー権限を取得	いいえ
その他の権限を取得	いいえ
ユーザー操作が必要	いいえ

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:a:kde:kdeconnect::::::::					20.08.2

構成2	以上	以下	より上	未満
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:a:opensuse:backports_sle:15.0:sp1::::::
cpe:2.3:o:opensuse:leap:15.2:::::::*
cpe:2.3:a:opensuse:backports_sle:15.0:sp2::::::

関連情報、対策とツール

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00016.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00016.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00018.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00018.html	Mailing List Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2020/10/13/4	Mailing List Third Party Advisory
6	http://www.openwall.com/lists/oss-security/2020/10/13/4	Mailing List Third Party Advisory
7	http://www.openwall.com/lists/oss-security/2020/10/13/5	Mailing List Third Party Advisory
8	http://www.openwall.com/lists/oss-security/2020/10/13/5	Mailing List Third Party Advisory
9	http://www.openwall.com/lists/oss-security/2020/10/14/1	Mailing List Third Party Advisory
10	http://www.openwall.com/lists/oss-security/2020/10/14/1	Mailing List Third Party Advisory
11	http://www.openwall.com/lists/oss-security/2020/11/30/1	Mailing List
12	http://www.openwall.com/lists/oss-security/2020/11/30/1	Mailing List
13	https://bugzilla.suse.com/show_bug.cgi?id=1176268	Issue Tracking Third Party Advisory
14	https://bugzilla.suse.com/show_bug.cgi?id=1176268	Issue Tracking Third Party Advisory
15	https://github.com/KDE/kdeconnect-kde/commit/024e5f23db8d8ad3449714b906b46094baaffb89	Patch Third Party Advisory
16	https://github.com/KDE/kdeconnect-kde/commit/024e5f23db8d8ad3449714b906b46094baaffb89	Patch Third Party Advisory
17	https://github.com/KDE/kdeconnect-kde/commit/4fbd01a3d44a0bcca888c49a77ec7cfd10e113d7	Patch Third Party Advisory
18	https://github.com/KDE/kdeconnect-kde/commit/4fbd01a3d44a0bcca888c49a77ec7cfd10e113d7	Patch Third Party Advisory
19	https://github.com/KDE/kdeconnect-kde/commit/542d94a70c56aa386c8d4d793481ce181b0422e8	Patch Third Party Advisory
20	https://github.com/KDE/kdeconnect-kde/commit/542d94a70c56aa386c8d4d793481ce181b0422e8	Patch Third Party Advisory
21	https://github.com/KDE/kdeconnect-kde/commit/613899be24b6e2a6b3e5cc719efce8ae8a122991	Patch Third Party Advisory
22	https://github.com/KDE/kdeconnect-kde/commit/613899be24b6e2a6b3e5cc719efce8ae8a122991	Patch Third Party Advisory
23	https://github.com/KDE/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d	Patch Third Party Advisory
24	https://github.com/KDE/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d	Patch Third Party Advisory
25	https://github.com/KDE/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59	Patch Third Party Advisory
26	https://github.com/KDE/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59	Patch Third Party Advisory
27	https://github.com/KDE/kdeconnect-kde/releases	Release Notes Third Party Advisory
28	https://github.com/KDE/kdeconnect-kde/releases	Release Notes Third Party Advisory
29	https://kde.org/info/security/advisory-20201002-1.txt	Third Party Advisory Vendor Advisory
30	https://kde.org/info/security/advisory-20201002-1.txt	Third Party Advisory Vendor Advisory
31	https://kdeconnect.kde.org/official/	Product
32	https://kdeconnect.kde.org/official/	Product
33	https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00014.html	Mailing List Third Party Advisory
34	https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00014.html	Mailing List Third Party Advisory
35	https://security.gentoo.org/glsa/202101-16	Third Party Advisory
36	https://security.gentoo.org/glsa/202101-16	Third Party Advisory

共通脆弱性一覧

No	CWE	名前	URL
1	CWE-400	リソースの枯渇	https://cwe.mitre.org/data/definitions/400.html

JVN脆弱性情報

kdeconnect-kde におけるリソースの枯渇に関する脆弱性

タイトル	kdeconnect-kde におけるリソースの枯渇に関する脆弱性
概要	kdeconnect-kde (別名 KDE Connect) には、リソースの枯渇に関する脆弱性が存在します。
想定される影響	サービス運用妨害 (DoS) 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	2020年10月2日0:00
登録日	2021年4月30日16:30
最終更新日	2021年4月30日16:30

影響を受けるシステム

KDE project

kdeconnect-kde 20.08.2 未満

openSUSE project

Backports SLE

openSUSE Leap

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-2020-26164	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26164
National Vulnerability Database (NVD)
2	CVE-2020-26164	https://nvd.nist.gov/vuln/detail/CVE-2020-26164

CWE (共通脆弱性タイプ一覧)

No	名前	URL
JVNDB
1	CWE-400	https://cwe.mitre.org/data/definitions/400.html

ベンダー情報

No	名前	URL
GitHub
1	Do not let lanlink connections stay open for long without authenticating	https://github.com/KDE/kdeconnect-kde/commit/024e5f23db8d8ad3449714b906b46094baaffb89
2	Do not remember more than a few identity packets at a time	https://github.com/KDE/kdeconnect-kde/commit/613899be24b6e2a6b3e5cc719efce8ae8a122991
3	Don't brute-force reading the socket	https://github.com/KDE/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d
4	Limit identity packets to 8KiB	https://github.com/KDE/kdeconnect-kde/commit/4fbd01a3d44a0bcca888c49a77ec7cfd10e113d7
5	Limit number of connected sockets from unpaired devices	https://github.com/KDE/kdeconnect-kde/commit/542d94a70c56aa386c8d4d793481ce181b0422e8
6	Limit the ports we try to connect to to the port range of KDE Connect	https://github.com/KDE/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59
7	releases	https://github.com/KDE/kdeconnect-kde/releases
KDE Project Security Advisory
8	KDE Connect: packet manipulation can be exploited in a Denial of Service attack	https://kde.org/info/security/advisory-20201002-1.txt
KOffice Announcements
9	Official Announcements	https://kdeconnect.kde.org/official/
openSUSE
10	トップページ	https://www.opensuse.org/

変更履歴

No	変更内容	変更日
1	[2021年04月30日] 掲載	2021年4月30日16:30