CVE-2024-39557
published 2024-07-10CVE-2024-39557: An Uncontrolled Resource Consumption vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS Evolved allows an…
PriorityP427medium6.5CVSS 3.1
AVAACLPRNUINSUCNINAH
EPSS
0.25%
15.8th percentile
An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).
Certain MAC table updates cause a small amount of memory to leak. Once memory utilization reaches its limit, the issue will result in a system crash and restart.
To identify the issue, execute the CLI command:
user@device> show platform application-info allocations app l2ald-agent
EVL Object Allocation Statistics:
Node Application Context Name Live Allocs Fails Guids
re0 l2ald-agent net::juniper::rtnh::L2Rtinfo 1069096 1069302 0 1069302
re0 l2ald-agent net::juniper::rtnh::NHOpaqueTlv 114 195 0 195
This issue affects Junos OS Evolved:
* All versions before 21.4R3-S8-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos_os | — | — |
| juniper | junos_os_evolved | < 21.4 | 21.4 |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper_networks | junos_os_evolved | < 21.4R3-S8-EVO | 21.4R3-S8-EVO |
| juniper_networks | junos_os_evolved | >= 22.2-EVO < 22.2R3-S4-EVO | 22.2R3-S4-EVO |
| juniper_networks | junos_os_evolved | >= 22.3-EVO < 22.3R3-S3-EVO | 22.3R3-S3-EVO |
| juniper_networks | junos_os_evolved | >= 22.4-EVO < 22.4R3-EVO | 22.4R3-EVO |
| juniper_networks | junos_os_evolved | >= 23.2-EVO < 23.2R2-EVO | 23.2R2-EVO |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.07.1HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X
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Juniper
CVE-2024-39557: An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an u
vendor_juniper·2024-07-10·CVSS 6.5
CVE-2024-39557 [MEDIUM] CWE-400 CVE-2024-39557: An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an u
CVE-2024-39557: An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).
Certain MAC table updates cause a small amount of memory to leak. Once memory utilization reaches its limit, the issue will result in a system crash and restart.
To identify the issue, execute the CLI command:
user@device> show platform application-info allocations app l2ald-agent
EVL Object Allocation Statistics:
Node Application Context Name Live Allocs Fails Guids
re0 l2ald-agent net::juniper::rtnh::L2Rtinfo 1069096 1069302 0 1069302
re0 l2ald-agent net::juniper::rtnh::N
GHSA
GHSA-g26w-g327-7xm5: An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an una
ghsa_unreviewed·2024-07-11
CVE-2024-39557 [HIGH] CWE-400 GHSA-g26w-g327-7xm5: An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an una
An Uncontrolled Resource Consumption vulnerability in the
Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS).
Certain MAC table updates cause a small amount of memory to leak. Once memory utilization reaches its limit, the issue will result in a system crash and restart.
To identify the issue, execute the CLI command:
user@device> show platform application-info allocations app l2ald-agent
EVL Object Allocation Statistics:
Node Application Context Name Live Allocs Fails Guids
re0 l2ald-agent net::juniper::rtnh::L2Rtinfo 1069096 1069302 0 1069302
re0 l2ald-agent net::juniper::rtnh::NHOpaqueTlv 114 1
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-07-10
Published