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CVE-2024-21596

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2024
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Junos OS and Junos OS Evolved: A specific BGP UPDATE message will cause a crash in the backup Routing Engine in NSR-enabled devices

A Heap-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). If an attacker sends a specific BGP UPDATE message to the device, this will cause a memory overwrite and therefore an RPD crash and restart in the backup Routing Engine (RE). Continued receipt of these packets will cause a sustained Denial of Service (DoS) condition in the backup RE. The primary RE is not impacted by this issue and there is no impact on traffic. This issue only affects devices with NSR enabled. Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability. This issue requires an attacker to have an established BGP session to a system affected by the issue. This issue affects both eBGP and iBGP implementations. This issue affects: Juniper Networks Junos OS * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S2; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R2-S2, 22.4R3; * 23.1 versions earlier than 23.1R2; * 23.2 versions earlier than 23.2R1-S2, 23.2R2. Juniper Networks Junos OS Evolved * All versions earlier than 21.3R3-S5-EVO; * 21.4-EVO versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S4-EVO; * 22.2-EVO versions earlier than 22.2R3-S2-EVO; * 22.3-EVO versions later than 22.3R1-EVO; * 22.4-EVO versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO; * 23.1-EVO versions earlier than 23.1R2-EVO; * 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Junos OS

Vendor
Juniper Networks
Product
Junos OS
Platforms
  • MX Series
  • PTX Series
  • ACX Series
  • EX Series
  • QFX Series
Default status
unaffected
Junos OS · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
0affectedsemver20.4R3-S9UnavailableNone listed
21.2affectedsemver21.2R3-S7UnavailableNone listed
21.3affectedsemver21.3R3-S5UnavailableNone listed
21.4affectedsemver21.4R3-S5UnavailableNone listed
22.1affectedsemver22.1R3-S4UnavailableNone listed
22.2affectedsemver22.2R3-S2UnavailableNone listed
22.3affectedsemver22.3R3-S1UnavailableNone listed
22.4affectedsemver22.4R2-S2, 22.4R3UnavailableNone listed
23.1affectedsemver23.1R2UnavailableNone listed
23.2affectedsemver23.2R1-S2, 23.2R2UnavailableNone listed

Junos OS Evolved

Vendor
Juniper Networks
Product
Junos OS Evolved
Platforms
  • PTX Series
  • ACX Series
  • QFX Series
Default status
unaffected
Junos OS Evolved · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
0affectedsemver21.3R3-S5-EVOUnavailableNone listed
21.4-EVOaffectedsemver21.4R3-S5-EVOUnavailableNone listed
22.1-EVOaffectedsemver22.1R3-S4-EVOUnavailableNone listed
22.2-EVOaffectedsemver22.2R3-S2-EVOUnavailableNone listed
22.4-EVOaffectedsemver22.4R2-S2-EVO, 22.4R3-EVOUnavailableNone listed
23.1-EVOaffectedsemver23.1R2-EVOUnavailableNone listed
23.2-EVOaffectedsemver23.2R1-S2-EVO, 23.2R2-EVOUnavailableNone listed