Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning/ethernet-switching' command causes l2ald crash
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 23.2R2-S7, 23.4R2-S7, 24.2R2, 24.4R1-S2, 23.2R2-S7-EVO, and 3 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS). On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' or 'show ethernet-switching' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted. This issue affects EX Series, QFX Series, MX Series: Junos OS: • all versions before 23.2R2-S7, • 23.4 versions before 23.4R2-S7, • 24.2 versions before 24.2R2, • 24.4 versions before 24.4R1-S2. Junos OS Evolved: • all versions before 23.2R2-S7-EVO, • 23.4 versions before 23.4R2-S8-EVO, • 24.2 versions before 24.2R2-EVO, • 24.4 versions before 24.4R1-S3-EVO.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Juniper Networks Junos OS
fixed in 23.2R2-S7; From 23.4 · fixed in 23.4R2-S7; From 24.2 · fixed in 24.2R2; From 24.4 · fixed in 24.4R1-S2
- Juniper Networks Junos OS Evolved
fixed in 23.2R2-S7-EVO; From 23.4 · fixed in 23.4R2-S8-EVO; From 24.2 · fixed in 24.2R2-EVO; From 24.4 · fixed in 24.4R1-S3-EVO