Vulnerability-Lookup

OPENSUSE-SU-2026:21294-1

Vulnerability from csaf_opensuse - Published: 2026-07-10 09:17 - Updated: 2026-09-16 21:43

Summary

Security update for python-cryptography

Severity

Important

Notes

Title of the patch: Security update for python-cryptography

Description of the patch: This update for python-cryptography fixes the following issues - CVE-2026-41676: openssl: `Deriver:derive` and `PkeyCtxRef:derive` can overflow short buffers on OpenSSL 1.1.1 (bsc#1270208). - CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length (bsc#1270620). - CVE-2026-41678: openssl: out-of-bounds write due to incorrect bounds assertion in `aes::unwrap_key()` (bsc#1270706). - CVE-2026-41681: openssl: `MdCtxRef::digest_final()` writes past caller buffer with no length check (bsc#1270772). - CVE-2026-41898: openssl: unchecked callback-returned length in PSK and cookie generate trampolines can leak adjacent memory to the network (bsc#1270801). - CVE-2026-42327: openssl: undefined behavior in `X509Ref::ocsp_responders` for certificates with non-UTF-8 OCSP URLs (bsc#1270515). - CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-wrap-with-padding due to incorrectly sized output buffers (bsc#1270936). - CVE-2026-45784: openssl: out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers due to incorrectly sized output buffer (bsc#1270994).

Patchnames: openSUSE-Leap-16.0-1205

CVE-2026-41676

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2026-41677

3.7 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact moderate

CVE-2026-41678

7.4 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact important

CVE-2026-41681

5.9 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact moderate

CVE-2026-41898

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact moderate

CVE-2026-42327

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact important

CVE-2026-44662

4.8 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact moderate

CVE-2026-45784

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

Recommended 4 products, the same list as for CVE-2026-41676

Threats

Impact moderate

References

41 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1270208	self
https://bugzilla.suse.com/1270515	self
https://bugzilla.suse.com/1270620	self
https://bugzilla.suse.com/1270706	self
https://bugzilla.suse.com/1270772	self
https://bugzilla.suse.com/1270801	self
https://bugzilla.suse.com/1270936	self
https://bugzilla.suse.com/1270994	self
https://www.suse.com/security/cve/CVE-2026-41676/	self
https://www.suse.com/security/cve/CVE-2026-41677/	self
https://www.suse.com/security/cve/CVE-2026-41678/	self
https://www.suse.com/security/cve/CVE-2026-41681/	self
https://www.suse.com/security/cve/CVE-2026-41898/	self
https://www.suse.com/security/cve/CVE-2026-42327/	self
https://www.suse.com/security/cve/CVE-2026-44662/	self
https://www.suse.com/security/cve/CVE-2026-45784/	self
https://www.suse.com/security/cve/CVE-2026-41676	external
https://bugzilla.suse.com/1270137	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-41677	external
https://bugzilla.suse.com/1270540	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-41678	external
https://bugzilla.suse.com/1270641	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-41681	external
https://bugzilla.suse.com/1270719	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-41898	external
https://bugzilla.suse.com/1270798	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-42327	external
https://bugzilla.suse.com/1270454	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-44662	external
https://bugzilla.suse.com/1270872	external
https://bugzilla.suse.com/1271911	external
https://www.suse.com/security/cve/CVE-2026-45784	external
https://bugzilla.suse.com/1270946	external

JSON

To clipboard

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          "details": "moderate"
        }
      ],
      "title": "CVE-2026-45784"
    }
  ]
}

CVE-2026-41676 (GCVE-0-2026-41676)

Vulnerability from cvelistv5 – Published: 2026-04-24 17:16 – Updated: 2026-04-24 17:43

Title

rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1

Summary

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.

Severity

7.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 17:43 UTC

CWE

CWE-787 - Out-of-bounds Write
CWE-131 - Incorrect Calculation of Buffer Size

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.9.27, < 0.10.78

Show details on NVD website

JSON

To clipboard

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CVE-2026-41677 (GCVE-0-2026-41677)

Vulnerability from cvelistv5 – Published: 2026-04-24 17:17 – Updated: 2026-04-24 18:02

Title

rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length

Summary

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's 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.

Severity

1.7 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 18:02 UTC

CWE

CWE-125 - Out-of-bounds Read
CWE-1284 - Improper Validation of Specified Quantity in Input

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.9.0, < 0.10.78

Show details on NVD website

JSON

To clipboard

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CVE-2026-41678 (GCVE-0-2026-41678)

Vulnerability from cvelistv5 – Published: 2026-04-24 17:18 – Updated: 2026-04-24 18:33

Title

rust-openssl: Incorrect bounds assertion in aes key wrap

Summary

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 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= 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.

Severity

7.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 18:27 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.10.24, < 0.10.78

Show details on NVD website

JSON

To clipboard

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CVE-2026-41681 (GCVE-0-2026-41681)

Vulnerability from cvelistv5 – Published: 2026-04-24 17:19 – Updated: 2026-04-24 17:42

Title

rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check

Summary

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.

Severity

8.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 17:42 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM
https://github.com/rust-openssl/rust-openssl/pull/2608	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/comm…	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/rele…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.10.39, < 0.10.78

Show details on NVD website

JSON

To clipboard

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CVE-2026-41898 (GCVE-0-2026-41898)

Vulnerability from cvelistv5 – Published: 2026-04-24 17:20 – Updated: 2026-04-24 18:01

Title

rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer

Summary

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's returned usize directly to OpenSSL without checking it against the &mut [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.

Severity

8.3 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 18:01 UTC

CWE

CWE-126 - Buffer Over-read
CWE-130 - Improper Handling of Length Parameter Inconsistency

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM
https://github.com/rust-openssl/rust-openssl/pull/2607	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/comm…	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/rele…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.9.24, < 0.10.78

Show details on NVD website

JSON

To clipboard

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CVE-2026-42327 (GCVE-0-2026-42327)

Vulnerability from cvelistv5 – Published: 2026-05-14 20:17 – Updated: 2026-05-15 18:05

Title

rust-openssl: undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs

Summary

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's AIA extension as OpensslString, whose Deref<Target = str> 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 &str that violates the UTF-8 invariant — resulting in undefined behavior. This vulnerability is fixed in 0.10.79.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-15 16:28 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.9.7, < 0.10.79

Show details on NVD website

JSON

To clipboard

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CVE-2026-44662 (GCVE-0-2026-44662)

Vulnerability from cvelistv5 – Published: 2026-05-14 20:18 – Updated: 2026-05-16 01:01

Title

rust-openssl: Heap buffer overflow when encrypting with AES key-wrap-with-padding

Summary

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's 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.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-16 01:01 UTC

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.10.0, < 0.10.79

Show details on NVD website

JSON

To clipboard

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CVE-2026-45784 (GCVE-0-2026-45784)

Vulnerability from cvelistv5 – Published: 2026-07-17 20:26 – Updated: 2026-07-20 13:49

Title

rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers

Summary

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's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This issue is fixed in version 0.10.80.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 13:49 UTC

CWE

CWE-131 - Incorrect Calculation of Buffer Size
CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/rust-openssl/rust-openssl/secu…	x_refsource_CONFIRM
https://github.com/rust-openssl/rust-openssl/pull/2638	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/comm…	x_refsource_MISC
https://github.com/rust-openssl/rust-openssl/rele…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rust-openssl	rust-openssl	Affected: >= 0.10.50, < 0.10.80

Show details on NVD website

JSON

To clipboard

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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T20:26:12.969Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq"
        },
        {
          "name": "https://github.com/rust-openssl/rust-openssl/pull/2638",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rust-openssl/rust-openssl/pull/2638"
        },
        {
          "name": "https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7"
        },
        {
          "name": "https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80"
        }
      ],
      "source": {
        "advisory": "GHSA-phqj-4mhp-q6mq",
        "discovery": "UNKNOWN"
      },
      "title": "rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45784",
    "datePublished": "2026-07-17T20:26:12.969Z",
    "dateReserved": "2026-05-13T07:45:21.252Z",
    "dateUpdated": "2026-07-20T13:49:55.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

OPENSUSE-SU-2026:21294-1

CVE-2026-41676 (GCVE-0-2026-41676)

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CVE-2026-41678 (GCVE-0-2026-41678)

CVE-2026-41681 (GCVE-0-2026-41681)

CVE-2026-41898 (GCVE-0-2026-41898)

CVE-2026-42327 (GCVE-0-2026-42327)

CVE-2026-44662 (GCVE-0-2026-44662)

CVE-2026-45784 (GCVE-0-2026-45784)

Tags

Sightings

Nomenclature

Related by attack behaviour