Confluence Data Center and Server update for Apache Commons Compress



Risk Medium
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2021-36090
CVE-2021-35517
CVE-2021-35516
CVE-2021-35515
CVE-2019-12402
CWE-ID CWE-400
CWE-835
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Atlassian Confluence Server
Server applications / Web servers

Confluence Data Center
Server applications / Other server solutions

Vendor Atlassian

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU54853

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-36090

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when processing ZIP archives. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 7.0.1 - 8.5.11

Confluence Data Center: 7.0.1 - 8.9.3

CPE2.3 External links

https://confluence.atlassian.com/security/security-bulletin-july-16-2024-1417150917.html
https://jira.atlassian.com/browse/CONFSERVER-96103


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU54852

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-35517

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when processing TAR archives. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 7.0.1 - 8.5.11

Confluence Data Center: 7.0.1 - 8.9.3

CPE2.3 External links

https://confluence.atlassian.com/security/security-bulletin-july-16-2024-1417150917.html
https://jira.atlassian.com/browse/CONFSERVER-96102


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Resource exhaustion

EUVDB-ID: #VU54851

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-35516

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when processing 7Z archives. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 7.0.1 - 8.5.11

Confluence Data Center: 7.0.1 - 8.9.3

CPE2.3 External links

https://confluence.atlassian.com/security/security-bulletin-july-16-2024-1417150917.html
https://jira.atlassian.com/browse/CONFSERVER-96101


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Infinite loop

EUVDB-ID: #VU54854

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-35515

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop when processing 7Z archives. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 7.0.1 - 8.5.11

Confluence Data Center: 7.0.1 - 8.9.3

CPE2.3 External links

https://confluence.atlassian.com/security/security-bulletin-july-16-2024-1417150917.html
https://jira.atlassian.com/browse/CONFSERVER-96100


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Resource management error

EUVDB-ID: #VU22185

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-12402

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the file name encoding algorithm can get into an infinite loop when faced with specially crafted inputs. A remote attacker can choose the file names inside of an archive created by Compress and cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 7.0.1 - 8.5.11

Confluence Data Center: 7.0.1 - 8.9.3

CPE2.3 External links

https://confluence.atlassian.com/security/security-bulletin-july-16-2024-1417150917.html
https://jira.atlassian.com/browse/CONFSERVER-96099


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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