Junos OS and Junos OS Evolved: On SRv6 enabled devices, an attacker sending a malformed BGP update can cause the rpd to 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 21.2R3-S9, 21.4R3-S10, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, and 9 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
An Improper Control of a Resource Through its Lifetime 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). On devices with SRv6 (Segment Routing over IPv6) enabled, an attacker can send a malformed BGP UPDATE packet which will cause the rpd to crash and restart. Continued receipt of these UPDATE packets will cause a sustained DoS condition. This issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.This issue affects Junos OS: • All versions before 21.2R3-S9, • from 21.4 before 21.4R3-S10, • from 22.2 before 22.2R3-S5, • from 22.3 before 22.3R3-S4, • from 22.4 before 22.4R3-S3, • from 23.2 before 23.2R2-S2, • from 23.4 before 23.4R2; and Junos OS Evolved: • All versions before 21.2R3-S9-EVO, • from 21.4-EVO before 21.4R3-S10-EVO, • from 22.2-EVO before 22.2R3-S5-EVO, • from 22.3-EVO before 22.3R3-S4-EVO, • from 22.4-EVO before 22.4R3-S3-EVO, • from 23.2-EVO before 23.2R2-S2-EVO, • from 23.4-EVO before 23.4R2-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 21.2R3-S9; From 21.4 · fixed in 21.4R3-S10; From 22.2 · fixed in 22.2R3-S5; From 22.3 · fixed in 22.3R3-S4; From 22.4 · fixed in 22.4R3-S3; From 23.2 · fixed in 23.2R2-S2; From 23.4 · fixed in 23.4R2
- Juniper Networks Junos OS Evolved
fixed in 21.2R3-S9-EVO; From 21.4-EVO · fixed in 21.4R3-S10-EVO; From 22.2-EVO · fixed in 22.2R3-S5-EVO; From 22.3-EVO · fixed in 22.3R3-S4-EVO; From 22.4-EVO · fixed in 22.4R3-S3-EVO; From 23.2-EVO · fixed in 23.2R2-S2-EVO; From 23.4-EVO · fixed in 23.4R2-EVO