Junos OS update for OpenSSL



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-4741
CVE-2024-2511
CWE-ID CWE-416
CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU89861

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-4741

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the SSL_free_buffers() function. A remote attacker can trigger a use-after-free error and perform a denial of service (DoS) attack.

Note, the vulnerability affects only applications that call the vulnerable function.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.4R1 - 23.2R2-S1

CPE2.3 External links

http://supportportal.juniper.net/s/article/2024-10-Security-Bulletin-Junos-OS-Multiple-vulnerabilities-resolved-in-OpenSSL


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Resource exhaustion

EUVDB-ID: #VU88211

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-2511

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 unbounded memory growth when processing TLSv1.3 sessions. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that the non-default SSL_OP_NO_TICKET option is being used in TLSv1.3.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.4R1 - 23.2R2-S1

CPE2.3 External links

http://supportportal.juniper.net/s/article/2024-10-Security-Bulletin-Junos-OS-Multiple-vulnerabilities-resolved-in-OpenSSL


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



###SIDEBAR###