GSD-2023-22395
Vulnerability from gsd - Updated: 2023-12-13 01:20Details
A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command 'show system buffers': user@host> show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host> show system buffers 793/1487/2280 mbufs in use (current/cache/total) <<<<<< mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-22395",
"id": "GSD-2023-22395"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"details": "A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command \u0027show system buffers\u0027: user@host\u003e show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host\u003e show system buffers 793/1487/2280 mbufs in use (current/cache/total) \u003c\u003c\u003c\u003c\u003c\u003c mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2.",
"id": "GSD-2023-22395",
"modified": "2023-12-13T01:20:42.608273Z",
"schema_version": "1.4.0"
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"DATE_PUBLIC": "2023-01-11T17:00:00.000Z",
"ID": "CVE-2023-22395",
"STATE": "PUBLIC",
"TITLE": "Junos OS: In an MPLS scenario the processing of specific packets to the device causes a buffer leak and ultimately a loss of connectivity"
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"affects": {
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"value": "To be exposed to this vulnerability a minimal IRB configuration like in the following example needs to be present:\n\n [interfaces irb unit \u003cunit\u003e family inet address \u003cIP-adress\u003e]"
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"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command \u0027show system buffers\u0027: user@host\u003e show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host\u003e show system buffers 793/1487/2280 mbufs in use (current/cache/total) \u003c\u003c\u003c\u003c\u003c\u003c mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2."
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"lang": "eng",
"value": "CWE-401 Missing Release of Memory after Effective Lifetime"
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"name": "https://kb.juniper.net/JSA70191",
"refsource": "CONFIRM",
"url": "https://kb.juniper.net/JSA70191"
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"value": "The following software releases have been updated to resolve this specific issue: 19.3R3-S7, 19.4R3-S9, 20.2R3-S5, 20.3R3-S5, 20.4R3-S4, 21.1R3-S3, 21.2R3-S2, 21.3R3-S1, 21.4R3, 22.1R2, 22.2R1, and all subsequent releases."
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{
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{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*",
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{
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"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.1:r3-s3:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:r2-s1:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:r2-s2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.3:r3-s5:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.4:r2-s6:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.4:r3-s7:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.2:r3-s4:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.3:r3-s3:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.1:r3-s1:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:r3:*:*:*:*:*:*",
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},
{
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.1:r3-s2:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.1:r3-s4:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.4:r3-s8:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:20.3:r3-s4:*:*:*:*:*:*",
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},
{
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"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.4:r2-s7:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "19.3",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos:19.4:r3-s9:*:*:*:*:*:*",
"cpe_name": [],
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}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "sirt@juniper.net",
"ID": "CVE-2023-22395"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command \u0027show system buffers\u0027: user@host\u003e show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host\u003e show system buffers 793/1487/2280 mbufs in use (current/cache/total) \u003c\u003c\u003c\u003c\u003c\u003c mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://kb.juniper.net/JSA70191",
"refsource": "CONFIRM",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.juniper.net/JSA70191"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-01-24T18:53Z",
"publishedDate": "2023-01-13T00:15Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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