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Echo: binutils: security update to 2.45.90.20260201+really2.45.50.20251201-1+e10

medium Tenable Self-Hosted Container Security Plugin ID 464862

Description

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

 - Multiple Use-After-Free vulnerabilities were found in the add_archive_element function in ld/ldmain.c of
 the GNU linker (ld), a component of binutils. The root cause is that plugin_maybe_claim() in ld/plugin.c
 frees the original BFD object via bfd_close/_bfd_delete_bfd when entry->the_bfd->my_archive == NULL, but
 the caller retains both the original abfd parameter and a shallow copy (orig_input.the_bfd) as dangling
 pointers. These dangling pointers are subsequently dereferenced at three distinct locations in
 add_archive_element: 1. Line ~1442: accessing abfd->my_archive via bfd_usrdata(abfd->my_archive) 2. Line
 ~1493: multiple accesses to abfd and abfd->my_archive in a conditional check and bfd_get_filename call 3.
 Line ~1525: dereferencing the shallow copy orig_input.the_bfd->my_archive in trace/verbose logging The
 vulnerability is triggered when LTO plugins are active (link_info.lto_plugin_active is true) and the input
 object has abfd->my_archive == NULL, which is a valid state for standalone object files. Red Hat builds
 binutils with --enable-plugins and --enable-lto, confirming the vulnerable code path is compiled in and
 reachable. An attacker who can supply a crafted object or archive file to a build process using LTO-
 enabled linking could exploit this flaw to cause a denial of service (linker crash via segmentation
 fault). Arbitrary code execution is theoretically possible through heap manipulation but is substantially
 mitigated by hardening measures including stack protector, FORTIFY_SOURCE, ASLR, and PIE. The attack
 surface is limited to build-time environments — the linker is a development tool not exposed in production
 runtime. The most realistic exploitation scenario is a supply chain attack introducing a crafted object
 file as a build dependency in CI/CD pipelines or development environments. (CVE-2026-19548)

Solution

Update the binutils library and its related packages to version 2.45.90.20260201+really2.45.50.20251201-1+e10 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-19548

Plugin Details

Severity: Medium

ID: 464862

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-19548

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 8/17/2026

Vulnerability Publication Date: 8/12/2026

Reference Information

CVE: CVE-2026-19548