Uncontrolled Memory Allocation in Juniper Networks Junos OS

1) Uncontrolled Memory Allocation

EUVDB-ID: #VU75136

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28968

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improperly controlled sequential memory allocation in the Juniper Networks Deep Packet Inspection-Decoder (JDPI-Decoder) Application Signature component. A remote attacker can cause the policies that rely on JDPI-Decoder actions to fail open.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.4R1-S1 - 22.3R1

CPE2.3

• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R1-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R1-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R1-S3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R1-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S5:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R2-S6:*:*:*:*:*:*:*

External links

https://supportportal.juniper.net/s/article/2023-04-Security-Bulletin-Junos-OS-SRX-Series-Policies-that-rely-on-JDPI-Decoder-actions-may-fail-open-CVE-2023-28968

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.