SUSE-SU-2026:23538-1
Vulnerability from csaf_suse - Published: 2026-09-02 09:18 - Updated: 2026-09-16 20:17Summary
Security update for openssl-3-livepatches
Severity
Important
Notes
Title of the patch: Security update for openssl-3-livepatches
Description of the patch: This update for openssl-3-livepatches fixes the following issues:
- CVE-2026-14457: RPK server signature algorithm selection can dereference a missing certificate (bsc#1275145,
bsc#1274792).
- CVE-2026-63072: heap buffer overflow in CMS key unwrapping (bsc#1275133, bsc#1274788).
- CVE-2026-63076: invalid pointer dereference in CMP server via crafted `protectionAlg` (bsc#1275143, bsc#1274790).
Patchnames: SUSE-SLE-Micro-6.1-699
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.5 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
8.2 (High)
Affected products
Recommended
1 product, the same list as for
CVE-2026-14457
Threats
Impact
important
7.5 (High)
Affected products
Recommended
1 product, the same list as for
CVE-2026-14457
Threats
Impact
important
References
22 references
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"url": "https://bugzilla.suse.com/1275143"
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"title": "Security update for openssl-3-livepatches",
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"product_tree": {
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"branches": [
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"name": "openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64",
"product": {
"name": "openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64",
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"relates_to_product_reference": "SUSE Linux Micro 6.1"
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},
"vulnerabilities": [
{
"cve": "CVE-2026-14457",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-14457"
}
],
"notes": [
{
"category": "general",
"text": "Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don\u0027t support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module boundary.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-14457",
"url": "https://www.suse.com/security/cve/CVE-2026-14457"
},
{
"category": "external",
"summary": "SUSE Bug 1274792 for CVE-2026-14457",
"url": "https://bugzilla.suse.com/1274792"
},
{
"category": "external",
"summary": "SUSE Bug 1275145 for CVE-2026-14457",
"url": "https://bugzilla.suse.com/1275145"
}
],
"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": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:18:15Z",
"details": "important"
}
],
"title": "CVE-2026-14457"
},
{
"cve": "CVE-2026-63072",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-63072"
}
],
"notes": [
{
"category": "general",
"text": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient\u0027s private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE.",
"title": "CVE description"
}
],
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"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
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{
"category": "external",
"summary": "CVE-2026-63072",
"url": "https://www.suse.com/security/cve/CVE-2026-63072"
},
{
"category": "external",
"summary": "SUSE Bug 1274788 for CVE-2026-63072",
"url": "https://bugzilla.suse.com/1274788"
},
{
"category": "external",
"summary": "SUSE Bug 1275133 for CVE-2026-63072",
"url": "https://bugzilla.suse.com/1275133"
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],
"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": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
}
],
"scores": [
{
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:18:15Z",
"details": "important"
}
],
"title": "CVE-2026-63072"
},
{
"cve": "CVE-2026-63076",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-63076"
}
],
"notes": [
{
"category": "general",
"text": "Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-63076",
"url": "https://www.suse.com/security/cve/CVE-2026-63076"
},
{
"category": "external",
"summary": "SUSE Bug 1274790 for CVE-2026-63076",
"url": "https://bugzilla.suse.com/1274790"
},
{
"category": "external",
"summary": "SUSE Bug 1275143 for CVE-2026-63076",
"url": "https://bugzilla.suse.com/1275143"
}
],
"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": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.1:openssl-3-livepatches-0.6-slfo.1.1_1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:18:15Z",
"details": "important"
}
],
"title": "CVE-2026-63076"
}
]
}
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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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