Detections
Analytics

Echo: openssl: security update to 3.5.5-1~deb13u2

critical Tenable Cloud Security Plugin ID 464844

Description

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

 - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap
 buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or
 possibly an attacker controlled code execution or other undefined behavior. If an attacker can supply a
 crafted X.509 certificate with an excessively large OCTET STRING value in extensions such as the Subject
 Key Identifier (SKID) or Authority Key Identifier (AKID) which are being converted to hex, the size of the
 buffer needed for the result is calculated as multiplication of the input length by 3. On 32 bit
 platforms, this multiplication may overflow resulting in the allocation of a smaller buffer and a heap
 buffer overflow. Applications and services that print or log contents of untrusted X.509 certificates are
 vulnerable to this issue. As the certificates would have to have sizes of over 1 Gigabyte, printing or
 logging such certificates is a fairly unlikely operation and only 32 bit platforms are affected, this
 issue was assigned Low severity. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this
 issue, as the affected code is outside the OpenSSL FIPS module boundary. (CVE-2026-31789)

Solution

Update the openssl library and its related packages to version 3.5.5-1~deb13u2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-31789

Plugin Details

Severity: Critical

ID: 464844

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.77

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-31789

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/8/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-31789

IAVA: 2026-A-0308-S