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Echo: linux: security update to 6.1.176-1

medium Tenable Self-Hosted Container Security Plugin ID 458485

Description

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

 - In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds
 access in crush_decode() A message of type CEPH_MSG_OSD_MAP containing a crush map with at least one
 bucket has two fields holding the bucket algorithm. If the values in these two fields differ, an out-of-
 bounds access can occur. This is the case because the first algorithm field (alg) is used to allocate the
 correct amount of memory for a bucket of this type, while the second algorithm field inside the bucket
 (b->alg) is used in the subsequent processing. This patch fixes the issue by adding a check that compares
 alg and b->alg and aborts the processing in case they differ. Furthermore, b->alg is set to 0 in this
 case, because the destruction of the crush map also uses this field to determine the bucket type, which
 can again result in an out-of-bounds access when trying to free the memory pointed to by the fields of the
 bucket. To correctly free the memory allocated for the bucket in such a case, the corresponding call to
 kfree is moved from the algorithm-specific crush_destroy_bucket functions to the generic
 crush_destroy_bucket(). (CVE-2026-52955)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-52955

Plugin Details

Severity: Medium

ID: 458485

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

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-2026-52955

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/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: 6/25/2026

Vulnerability Publication Date: 6/3/2026

Reference Information

CVE: CVE-2026-52955