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Echo: openssl: security update to 3.5.7-1~deb13u2

critical Tenable Self-Hosted Container Security Plugin ID 464893

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success
 without verifying the supplied authentication tag when the operation is finalized by calling the
 EVP_Cipher() function. Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and
 expecting the call to check the AEAD tag may accept forged messages. CWE: CWE-354 (Improper Validation of
 Integrity Check Value) Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot
 encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for
 AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was
 passed to the function. The callers of this function might believe that a successful return indicates a
 valid AEAD tag for these ciphers, even when that has not truly been validated in this case. FIPS impact:
 no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms
 are not FIPS approved and thus not implemented in the FIPS module. (CVE-2026-75803)

Solution

Update the openssl library and its related packages to version 3.5.7-1~deb13u2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-75803

Plugin Details

Severity: Critical

ID: 464893

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.43

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-75803

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/20/2026

Vulnerability Publication Date: 8/5/2026

Reference Information

CVE: CVE-2026-75803

IAVA: 2026-A-0878-S