NVD Vulnerability Detail

CVE-2021-28510

Summary	For certain systems running EOS, a Precision Time Protocol (PTP) packet of a management/signaling message with an invalid Type-Length-Value (TLV) causes the PTP agent to restart. Repeated restarts of the service will make the service unavailable.
Publication Date	Jan. 27, 2023, 6:15 a.m.
Registration Date	Jan. 27, 2023, 10:01 a.m.
Last Update	Nov. 21, 2024, 2:59 p.m.

CVSS3.1 : HIGH
スコア	7.5
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
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

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:arista:eos::::::::					4.23.10
cpe:2.3:o:arista:eos::::::::		4.24.0			4.24.8
cpe:2.3:o:arista:eos::::::::		4.25.0			4.25.6
cpe:2.3:o:arista:eos::::::::		4.26.0			4.26.4
cpe:2.3:o:arista:eos::::::::		4.27.0			4.27.1
execution environment
1	cpe:2.3:h:arista:7020r:-:::::::*
2	cpe:2.3:h:arista:7050cx3-32s:-:::::::*
3	cpe:2.3:h:arista:7050cx3m-32s:-:::::::*
4	cpe:2.3:h:arista:7050qx-32s:-:::::::*
5	cpe:2.3:h:arista:7050qx2-32s:-:::::::*
6	cpe:2.3:h:arista:7050sx-128:-:::::::*
7	cpe:2.3:h:arista:7050sx-64:-:::::::*
8	cpe:2.3:h:arista:7050sx-72q:-:::::::*
9	cpe:2.3:h:arista:7050sx2-128:-:::::::*
10	cpe:2.3:h:arista:7050sx2-72q:-:::::::*
11	cpe:2.3:h:arista:7050sx3-48c8:-:::::::*
12	cpe:2.3:h:arista:7050sx3-48yc:-:::::::*
13	cpe:2.3:h:arista:7050sx3-48yc12:-:::::::*
14	cpe:2.3:h:arista:7050sx3-48yc8:-:::::::*
15	cpe:2.3:h:arista:7050sx3-96yc8:-:::::::*
16	cpe:2.3:h:arista:7050tx-48:-:::::::*
17	cpe:2.3:h:arista:7050tx-64:-:::::::*
18	cpe:2.3:h:arista:7050tx-72q:-:::::::*
19	cpe:2.3:h:arista:7050tx2-128:-:::::::*
20	cpe:2.3:h:arista:7050tx3-48c8:-:::::::*
21	cpe:2.3:h:arista:7060cx-32s:-:::::::*
22	cpe:2.3:h:arista:7060cx2-32s:-:::::::*
23	cpe:2.3:h:arista:7060dx4-32:-:::::::*
24	cpe:2.3:h:arista:7060px4-32:-:::::::*
25	cpe:2.3:h:arista:7060sx2-48yc6:-:::::::*
26	cpe:2.3:h:arista:7150s-24:-:::::::*
27	cpe:2.3:h:arista:7150s-52:-:::::::*
28	cpe:2.3:h:arista:7150s-64:-:::::::*
29	cpe:2.3:h:arista:7150sc-24:-:::::::*
30	cpe:2.3:h:arista:7150sc-64:-:::::::*
31	cpe:2.3:h:arista:7170-32c:-:::::::*
32	cpe:2.3:h:arista:7170-32cd:-:::::::*
33	cpe:2.3:h:arista:7170-64c:-:::::::*
34	cpe:2.3:h:arista:720xp-24y6:-:::::::*
35	cpe:2.3:h:arista:720xp-24zy4:-:::::::*
36	cpe:2.3:h:arista:720xp-48y6:-:::::::*
37	cpe:2.3:h:arista:720xp-48zc2:-:::::::*
38	cpe:2.3:h:arista:720xp-96zc2:-:::::::*
39	cpe:2.3:h:arista:7250qx-64:-:::::::*
40	cpe:2.3:h:arista:7260cx:-:::::::*
41	cpe:2.3:h:arista:7260cx3:-:::::::*
42	cpe:2.3:h:arista:7260cx3-64:-:::::::*
43	cpe:2.3:h:arista:7260qx:-:::::::*
44	cpe:2.3:h:arista:7280e:-:::::::*
45	cpe:2.3:h:arista:7280r:-:::::::*
46	cpe:2.3:h:arista:7280r2:-:::::::*
47	cpe:2.3:h:arista:7280r3:-:::::::*
48	cpe:2.3:h:arista:7280sr3-48yc8:-:::::::*
49	cpe:2.3:h:arista:7280sr3k-48yc8:-:::::::*
50	cpe:2.3:h:arista:7300x-32q:-:::::::*
51	cpe:2.3:h:arista:7300x-64s:-:::::::*
52	cpe:2.3:h:arista:7300x-64t:-:::::::*
53	cpe:2.3:h:arista:7300x3-32c:-:::::::*
54	cpe:2.3:h:arista:7300x3-48yc4:-:::::::*
55	cpe:2.3:h:arista:7304x3:-:::::::*
56	cpe:2.3:h:arista:7308x3:-:::::::*
57	cpe:2.3:h:arista:7320x-32c:-:::::::*
58	cpe:2.3:h:arista:7324x:-:::::::*
59	cpe:2.3:h:arista:7328x:-:::::::*
60	cpe:2.3:h:arista:7368x4:-:::::::*
61	cpe:2.3:h:arista:7500e:-:::::::*
62	cpe:2.3:h:arista:7500r:-:::::::*
63	cpe:2.3:h:arista:7500r2:-:::::::*
64	cpe:2.3:h:arista:7500r3:-:::::::*
65	cpe:2.3:h:arista:7500r3-24d:-:::::::*
66	cpe:2.3:h:arista:7500r3-24p:-:::::::*
67	cpe:2.3:h:arista:7500r3-36cq:-:::::::*
68	cpe:2.3:h:arista:7500r3k-36cq:-:::::::*
69	cpe:2.3:h:arista:7504r3:-:::::::*
70	cpe:2.3:h:arista:7508r3:-:::::::*
71	cpe:2.3:h:arista:7512r3:-:::::::*
72	cpe:2.3:h:arista:7800r3-36p:-:::::::*
73	cpe:2.3:h:arista:7800r3-48cq:-:::::::*
74	cpe:2.3:h:arista:7800r3k-48cq:-:::::::*
75	cpe:2.3:h:arista:7804r3:-:::::::*
76	cpe:2.3:h:arista:7808r3:-:::::::*

Related information, measures and tools

No	URL	refsource	タグ
1	https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076		Exploit Mitigation Vendor Advisory
2	https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076		Exploit Mitigation Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-1284	入力で指定された数量の不適切な検証	https://cwe.mitre.org/data/definitions/1284.html

JVN Vulnerability Information

EOS における入力で指定された数量の不適切な検証に関する脆弱性

Title	EOS における入力で指定された数量の不適切な検証に関する脆弱性
Summary	EOS には、入力で指定された数量の不適切な検証に関する脆弱性が存在します。
Possible impacts	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	April 26, 2022, midnight
Registration Date	July 25, 2023, 10:32 a.m.
Last Update	July 25, 2023, 10:32 a.m.

Affected System

Arista Networks, Inc.

Arista EOS

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-2021-28510	https://www.cve.org/CVERecord?id=CVE-2021-28510
National Vulnerability Database (NVD)
2	CVE-2021-28510	https://nvd.nist.gov/vuln/detail/CVE-2021-28510

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-1284	https://cwe.mitre.org/data/definitions/1284.html

ベンダー情報

No	Name	URL
Arista
1	Security Advisory 0076	https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076

Change Log

No	Changed Details	Date of change
1	[2023年07月25日] 掲載	July 25, 2023, 10:32 a.m.