The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0503 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-45447:
    Issue summary: A specially crafted PKCS#7 or S/MIME signed message could     trigger a use-after-free during PKCS#7 signature verification.

    Impact summary: A use-after-free may result in process crashes, heap     corruption, or potentially remote code execution.

    When processing a PKCS#7 or S/MIME signed message, if the SignedData     digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may     incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent     use of the BIO by the calling application results in a use-after-free     condition.

    In the common case this occurs when the application later calls     BIO_free() on the BIO originally passed to PKCS7_verify(). Depending     on allocator behavior and application-specific BIO usage patterns, this     may result in a crash or other memory corruption. In some application     contexts this may potentially be exploitable for remote code execution.

    Applications that process PKCS#7 or S/MIME signed messages using OpenSSL     PKCS#7 APIs may be affected. Applications using the CMS APIs for this     processing are not affected.

    The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this     issue, as the affected code is outside the OpenSSL FIPS module boundary.

    CVE-2026-34182:
    Issue Summary: Cryptographic Message Services (CMS) processing fails to perform     sufficient input validation on the cipher and tag length fields of     AuthEnvelopedData containers, leading to various potential compromises.

    Impact Summary: Attackers making use of these vulnerabilities may achieve     key-equivalent functionality for a given CMS recipient and/or bypass integrity     validation for a given message.

    In one use case, an attacker may send a CMS message containing     AuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL     erroneously allows this selection, and attempts to decrypt and validate the     message.

    An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData     addressed to the victim can re-emit it with the recipientInfos set left     byte-for-byte intact, so the victim's private key still unwraps the genuine CEK     (the content-encryption key), but with the inner OID rewritten to AES-256-OFB     (Output Feedback Mode, an unauthenticated keystream mode) and with an     attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the     real CEK, never consults the MAC field, and CMS_decrypt() returns success.

    If the application under attack responds to the attacker with any indicator     showing success or failure of the decryption effort, it is possible for the     attacker to use this as an oracle to obtain key equivalent functionality for the     CEK used for the chosen recipient of the message.

    In another use case, an attacker can reduce the tag length of the chosen AEAD     cipher for a given AuthEnvelopedData container to be a single byte long,     allowing an attacker to brute force CMS decryption, producing an integrity     bypass for applications that trust CMS_decrypt() to reject modified content.

    The FIPS modules are not affected by this issue.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25239 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS)     protocols, as well as a full-strength general-purpose cryptography library.

    Security Fix(es):

    * openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing     (CVE-2026-7383)

    * openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption     (CVE-2026-9076)

    * openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information     disclosure. (CVE-2026-34180)

    * openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys (CVE-2026-34181)

    * openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182)

    * openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183)

    * openssl: NULL pointer dereference in QUIC server initial packet handling (CVE-2026-42764)

    * openssl: Possible NULL Dereference in Password-Based CMS Decryption (CVE-2026-42766)

    * openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption (CVE-2026-42767)

    * openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (CVE-2026-42768)

    * openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate (CVE-2026-42769)

    * openssl: FFC-DH Peer Validation Uses Attacker-Supplied q (CVE-2026-42770)

    * openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445)

    * openssl: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes (CVE-2026-45446)

    * openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:83617 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS)     protocols, as well as a full-strength general-purpose cryptography library.

    Security Fix(es):

    * openssl: OpenSSL: Information disclosure and data tampering via specific low-level OCB     encryption/decryption calls (CVE-2025-69418)

    * openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key     (CVE-2026-31790)

    * openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing     (CVE-2026-28390)

    * openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182)

    * openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183)

    * openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445)

    * openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the openssl package has been released.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
325856	TencentOS Server 4: openssl (TSSA-2026:0503)	Nessus	Tencent Local Security Checks	2026/7/9	2026/7/9	critical
320634	RHEL 9 : openssl (RHSA-2026:25239)	Nessus	Red Hat Local Security Checks	2026/6/11	2026/6/12	critical
366227	RHEL 9 : openssl (RHSA-2026:83617)	Nessus	Red Hat Local Security Checks	2026/10/15	2026/10/15	high
332414	Photon OS 5.0: Openssl PHSA-2026-5.0-92-0874	Nessus	PhotonOS Local Security Checks	2026/8/5	2026/11/2	high
321398	Photon OS 4.0: Openssl PHSA-2026-4.0-1031	Nessus	PhotonOS Local Security Checks	2026/6/17	2026/11/2	critical

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