SUSE-SU-2026:3642-1
Vulnerability from csaf_suse - Published: 2026-08-18 14:21 - Updated: 2026-08-18 14:21Summary
Security update for snphost
Severity
Important
Notes
Title of the patch: Security update for snphost
Description of the patch: This update for snphost fixes the following issues:
- CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length
(bsc#1270541).
- CVE-2026-41678: openssl: OOB write due to incorrect bounds assertion in `aes::unwrap_key()` (bsc#1270642).
- CVE-2026-41681: openssl: stack corruption due to `MdCtxRef::digest_final()` writing past caller buffer with no length
check (bsc#1270720).
- CVE-2026-41898: openssl: information leak to network peers due to unchecked callback-returned length in PSK and
cookie generate trampolines (bsc#1270799).
- CVE-2026-42327: openssl: undefined behavior in `X509Ref::ocsp_responders` when processing certificates with non-UTF-8
OCSP URLs (bsc#1270527).
- CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-wrap-with-padding (bsc#1270873).
- CVE-2026-45784: openssl: OOB write due to incorrectly sized output buffers in `CipherCtxRef::cipher_update_inplace`
when it is used with AES key-wrap-with-padding ciphers (bsc#1270947).
Patchnames: SUSE-2026-3642,SUSE-SLE-Module-Confidential-Computing-15-SP7-2026-3642
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
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
7.4 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
5.9 (Medium)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
6.5 (Medium)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
7.5 (High)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
4.8 (Medium)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
6.5 (Medium)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
38 references
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"title": "Security update for snphost",
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"category": "general",
"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user\u0027s callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.",
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"notes": [
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"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 \u003c= in_.len(), but this condition is reversed. The intended invariant is out.len() \u003e= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.",
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"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.",
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"notes": [
{
"category": "general",
"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure\u0027s returned usize directly to OpenSSL without checking it against the \u0026mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.",
"title": "CVE description"
}
],
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"product_ids": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
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}
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"version": "3.1"
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"products": [
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"text": "https://www.suse.com/security/cve/CVE-2026-42327"
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"notes": [
{
"category": "general",
"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocsp_responders returns OCSP responder URLs from a certificate\u0027s AIA extension as OpensslString, whose Deref\u003cTarget = str\u003e wraps the raw bytes with str::from_utf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a \u0026str that violates the UTF-8 invariant - resulting in undefined behavior. This vulnerability is fixed in 0.10.79.",
"title": "CVE description"
}
],
"product_status": {
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]
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"category": "external",
"summary": "CVE-2026-42327",
"url": "https://www.suse.com/security/cve/CVE-2026-42327"
},
{
"category": "external",
"summary": "SUSE Bug 1270454 for CVE-2026-42327",
"url": "https://bugzilla.suse.com/1270454"
},
{
"category": "external",
"summary": "SUSE Bug 1271911 for CVE-2026-42327",
"url": "https://bugzilla.suse.com/1271911"
}
],
"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 Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.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:H/A:N",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-08-18T14:21:33Z",
"details": "important"
}
],
"title": "CVE-2026-42327"
},
{
"cve": "CVE-2026-44662",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-44662"
}
],
"notes": [
{
"category": "general",
"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller\u0027s buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-44662",
"url": "https://www.suse.com/security/cve/CVE-2026-44662"
},
{
"category": "external",
"summary": "SUSE Bug 1270872 for CVE-2026-44662",
"url": "https://bugzilla.suse.com/1270872"
},
{
"category": "external",
"summary": "SUSE Bug 1271911 for CVE-2026-44662",
"url": "https://bugzilla.suse.com/1271911"
}
],
"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 Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-08-18T14:21:33Z",
"details": "moderate"
}
],
"title": "CVE-2026-44662"
},
{
"cve": "CVE-2026-45784",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-45784"
}
],
"notes": [
{
"category": "general",
"text": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80, CipherCtxRef::cipher_update_inplace in openssl/src/cipher_ctx.rs incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers EVP_aes_{128,192,256}_wrap_pad. For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller\u0027s buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This issue is fixed in version 0.10.80.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-45784",
"url": "https://www.suse.com/security/cve/CVE-2026-45784"
},
{
"category": "external",
"summary": "SUSE Bug 1270946 for CVE-2026-45784",
"url": "https://bugzilla.suse.com/1270946"
}
],
"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 Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Module for Confidential Computing Technical Preview 15 SP7:snphost-0.6.1-150700.3.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-08-18T14:21:33Z",
"details": "moderate"
}
],
"title": "CVE-2026-45784"
}
]
}
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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.
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.
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