7.8
HIGH
CVE-2021-30849
Apple Safari Memory Corruption Vulnerability
Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, watchOS 8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

INFO

Published Date :

Oct. 19, 2021, 2:15 p.m.

Last Modified :

Nov. 21, 2024, 6:04 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-30849 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple itunes
3 Apple iphone_os
4 Apple tvos
5 Apple watchos
6 Apple safari
7 Apple ipados
: Total Affected Vendor : 1 | Products : 7
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-30849.

URL Resource
http://seclists.org/fulldisclosure/2021/Oct/60 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/61 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/62 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/63 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List
https://support.apple.com/en-us/HT212807 Vendor Advisory
https://support.apple.com/en-us/HT212814 Vendor Advisory
https://support.apple.com/en-us/HT212815 Vendor Advisory
https://support.apple.com/en-us/HT212816 Vendor Advisory
https://support.apple.com/en-us/HT212817 Vendor Advisory
https://support.apple.com/en-us/HT212819 Vendor Advisory
https://support.apple.com/kb/HT212869 Vendor Advisory
https://support.apple.com/kb/HT212953 Vendor Advisory
http://seclists.org/fulldisclosure/2021/Oct/60 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/61 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/62 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/63 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List
http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List
https://support.apple.com/en-us/HT212807 Vendor Advisory
https://support.apple.com/en-us/HT212814 Vendor Advisory
https://support.apple.com/en-us/HT212815 Vendor Advisory
https://support.apple.com/en-us/HT212816 Vendor Advisory
https://support.apple.com/en-us/HT212817 Vendor Advisory
https://support.apple.com/en-us/HT212819 Vendor Advisory
https://support.apple.com/kb/HT212869 Vendor Advisory
https://support.apple.com/kb/HT212953 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-30849 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-30849 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/60
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/61
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/62
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/63
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/26/9
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/1
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/2
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/4
    Added Reference https://support.apple.com/en-us/HT212807
    Added Reference https://support.apple.com/en-us/HT212814
    Added Reference https://support.apple.com/en-us/HT212815
    Added Reference https://support.apple.com/en-us/HT212816
    Added Reference https://support.apple.com/en-us/HT212817
    Added Reference https://support.apple.com/en-us/HT212819
    Added Reference https://support.apple.com/kb/HT212869
    Added Reference https://support.apple.com/kb/HT212953
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 23, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/60 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/60 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/61 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/61 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/62 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/62 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/63 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/63 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/26/9 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/27/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/27/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/27/4 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List
    Changed Reference Type https://support.apple.com/kb/HT212869 No Types Assigned https://support.apple.com/kb/HT212869 Vendor Advisory
    Changed Reference Type https://support.apple.com/kb/HT212953 No Types Assigned https://support.apple.com/kb/HT212953 Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.12 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.0 OR *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.12 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 12.0.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.0
  • CVE Modified by [email protected]

    Nov. 19, 2021

    Action Type Old Value New Value
    Added Reference https://support.apple.com/kb/HT212869 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 10, 2021

    Action Type Old Value New Value
    Added Reference https://support.apple.com/kb/HT212953 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 27, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/4 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 27, 2021

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/63 [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/62 [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/61 [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/60 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 27, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 27, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/27/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 26, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/26/9 [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 25, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.apple.com/en-us/HT212807 No Types Assigned https://support.apple.com/en-us/HT212807 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212814 No Types Assigned https://support.apple.com/en-us/HT212814 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212815 No Types Assigned https://support.apple.com/en-us/HT212815 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212816 No Types Assigned https://support.apple.com/en-us/HT212816 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212817 No Types Assigned https://support.apple.com/en-us/HT212817 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212819 No Types Assigned https://support.apple.com/en-us/HT212819 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.12 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.0 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-30849 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-30849 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.14 }} -0.00%

score

0.50190

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: