OPENSUSE-SU-2025:15780-1
Vulnerability from csaf_opensuse - Published: 2025-11-28 00:00 - Updated: 2026-09-20 21:45Summary
libcoap-devel-4.3.5a-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: libcoap-devel-4.3.5a-1.1 on GA media
Description of the patch: These are all security issues fixed in the libcoap-devel-4.3.5a-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2025-15780
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Recommended
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
important
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
important
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
Affected products
Recommended
12 products, the same list as for
CVE-2025-65493
Threats
Impact
moderate
References
29 references
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"vulnerabilities": [
{
"cve": "CVE-2025-65493",
"ids": [
{
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"text": "https://www.suse.com/security/cve/CVE-2025-65493"
}
],
"notes": [
{
"category": "general",
"text": "NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.",
"title": "CVE description"
}
],
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"url": "https://www.suse.com/security/cve/CVE-2025-65493"
},
{
"category": "external",
"summary": "SUSE Bug 1254187 for CVE-2025-65493",
"url": "https://bugzilla.suse.com/1254187"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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]
}
],
"threats": [
{
"category": "impact",
"date": "2025-11-28T00:00:00Z",
"details": "important"
}
],
"title": "CVE-2025-65493"
},
{
"cve": "CVE-2025-65494",
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{
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}
],
"notes": [
{
"category": "general",
"text": "NULL pointer dereference in get_san_or_cn_from_cert() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted X.509 certificate that causes sk_GENERAL_NAME_value() to return NULL.",
"title": "CVE description"
}
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},
{
"category": "external",
"summary": "SUSE Bug 1254188 for CVE-2025-65494",
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{
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{
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"text": "https://www.suse.com/security/cve/CVE-2025-65495"
}
],
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{
"category": "general",
"text": "Integer signedness error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2d_X509() to return -1 and be misused as a malloc() size parameter.",
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{
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{
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}
],
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{
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}
],
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"text": "NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.",
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}
],
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{
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"text": "NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.",
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{
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"text": "https://www.suse.com/security/cve/CVE-2025-65499"
}
],
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{
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"text": "Array index error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_ex_data_X509_STORE_CTX_idx() to return -1.",
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{
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}
],
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{
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"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.x86_64",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.ppc64le",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2025-65500",
"url": "https://www.suse.com/security/cve/CVE-2025-65500"
},
{
"category": "external",
"summary": "SUSE Bug 1254192 for CVE-2025-65500",
"url": "https://bugzilla.suse.com/1254192"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.ppc64le",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.x86_64",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.ppc64le",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.x86_64",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.ppc64le",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap3-3-0:4.3.5a-1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2025-11-28T00:00:00Z",
"details": "moderate"
}
],
"title": "CVE-2025-65500"
},
{
"cve": "CVE-2025-65501",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2025-65501"
}
],
"notes": [
{
"category": "general",
"text": "Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.ppc64le",
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]
},
"references": [
{
"category": "external",
"summary": "CVE-2025-65501",
"url": "https://www.suse.com/security/cve/CVE-2025-65501"
},
{
"category": "external",
"summary": "SUSE Bug 1254193 for CVE-2025-65501",
"url": "https://bugzilla.suse.com/1254193"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.aarch64",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.ppc64le",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.s390x",
"openSUSE Tumbleweed:libcoap-devel-0:4.3.5a-1.1.x86_64",
"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.aarch64",
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"openSUSE Tumbleweed:libcoap-utils-0:4.3.5a-1.1.x86_64",
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]
}
],
"threats": [
{
"category": "impact",
"date": "2025-11-28T00:00:00Z",
"details": "moderate"
}
],
"title": "CVE-2025-65501"
}
]
}
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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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