Juniper Junos OS prior 20.2R3-S5/20.3/20.3R1 on MX Suspicious Control Flow Detection memory leak
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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6.7 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in Juniper Junos OS on MX (Router Operating System). Affected by this vulnerability is an unknown code of the component Suspicious Control Flow Detection. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:
A Missing Release of Memory after Effective Lifetime vulnerability in the Juniper Networks Junos OS on MX Series platforms with MPC10/MPC11 line cards, allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). Devices are only vulnerable when the Suspicious Control Flow Detection (scfd) feature is enabled. Upon enabling this specific feature, an attacker sending specific traffic is causing memory to be allocated dynamically and it is not freed. Memory is not freed even after deactivating this feature. Sustained processing of such traffic will eventually lead to an out of memory condition that prevents all services from continuing to function, and requires a manual restart to recover. The FPC memory usage can be monitored using the CLI command "show chassis fpc". On running the above command, the memory of AftDdosScfdFlow can be observed to detect the memory leak. This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 20.2R3-S5; 20.3 version 20.3R1 and later versions.
The weakness was published 01/13/2023 as JSA70206. It is possible to read the advisory at kb.juniper.net. This vulnerability is known as CVE-2023-22410 since 12/27/2022. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 20.2R3-S5, 20.3 or 20.3R1 eliminates this vulnerability.
Product
Type
Vendor
Name
License
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD Vector: 🔍
CNA Base Score: 7.5
CNA Vector (Juniper Networks, Inc.): 🔍
CVSSv2
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
Exploiting
Class: Memory leakCWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
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Price Prediction: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Junos OS 20.2R3-S5/20.3/20.3R1
Timeline
12/27/2022 🔍01/13/2023 🔍
01/13/2023 🔍
02/05/2023 🔍
Sources
Vendor: juniper.netAdvisory: JSA70206
Status: Confirmed
CVE: CVE-2023-22410 (🔍)
Entry
Created: 01/13/2023 09:04Updated: 02/05/2023 14:22
Changes: 01/13/2023 09:04 (52), 02/05/2023 14:22 (11)
Complete: 🔍
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