Detections
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Echo: linux: security update to 6.12.31

medium Tenable Cloud Security Plugin ID 455306

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: x86/Kconfig: make CFI_AUTO_DEFAULT
 depend on !RUST or Rust >= 1.88 Calling core::fmt::write() from rust code while FineIBT is enabled results
 in a kernel panic: [ 4614.199779] kernel BUG at arch/x86/kernel/cet.c:132! [ 4614.205343] Oops: invalid
 opcode: 0000 [#1] PREEMPT SMP NOPTI [ 4614.211781] CPU: 2 UID: 0 PID: 6057 Comm: dmabuf_dump Tainted: G U
 O 6.12.17-android16-0-g6ab38c534a43 #1 9da040f27673ec3945e23b998a0f8bd64c846599 [ 4614.227832] Tainted:
 [U]=USER, [O]=OOT_MODULE [ 4614.241247] RIP: 0010:do_kernel_cp_fault+0xea/0xf0 ... [ 4614.398144] RIP:
 0010:_RNvXs5_NtNtNtCs3o2tGsuHyou_4core3fmt3num3impyNtB9_7Display3fmt+0x0/0x20 [ 4614.407792] Code: 48 f7
 df 48 0f 48 f9 48 89 f2 89 c6 5d e9 18 fd ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 81 ea 14 61 af 2c
 74 03 0f 0b 90 <66> 0f 1f 00 55 48 89 e5 48 89 f2 48 8b 3f be 01 00 00 00 5d e9 e7 [ 4614.428775] RSP:
 0018:ffffb95acfa4ba68 EFLAGS: 00010246 [ 4614.434609] RAX: 0000000000000000 RBX: 0000000000000010 RCX:
 0000000000000000 [ 4614.442587] RDX: 0000000000000007 RSI: ffffb95acfa4ba70 RDI: ffffb95acfa4bc88 [
 4614.450557] RBP: ffffb95acfa4bae0 R08: ffff0a00ffffff05 R09: 0000000000000070 [ 4614.458527] R10:
 0000000000000000 R11: ffffffffab67eaf0 R12: ffffb95acfa4bcc8 [ 4614.466493] R13: ffffffffac5d50f0 R14:
 0000000000000000 R15: 0000000000000000 [ 4614.474473] ?
 __cfi__RNvXs5_NtNtNtCs3o2tGsuHyou_4core3fmt3num3impyNtB9_7Display3fmt+0x10/0x10 [ 4614.484118] ?
 _RNvNtCs3o2tGsuHyou_4core3fmt5write+0x1d2/0x250 This happens because core::fmt::write() calls
 core::fmt::rt::Argument::fmt(), which currently has CFI disabled: library/core/src/fmt/rt.rs: 171 //
 FIXME: Transmuting formatter in new and indirectly branching to/calling 172 // it here is an explicit CFI
 violation. 173 #[allow(inline_no_sanitize)] 174 #[no_sanitize(cfi, kcfi)] 175 #[inline] 176 pub(super)
 unsafe fn fmt(&self, f: &mut Formatter<'_>) -> Result { This causes a Control Protection exception,
 because FineIBT has sealed off the original function's endbr64. This makes rust currently incompatible
 with FineIBT. Add a Kconfig dependency that prevents FineIBT from getting turned on by default if rust is
 enabled. [ Rust 1.88.0 (scheduled for 2025-06-26) should have this fixed [1], and thus we relaxed the
 condition with Rust >= 1.88. When `objtool` lands checking for this with e.g. [2], the plan is to ideally
 run that in upstream Rust's CI to prevent regressions early [3], since we do not control `core`'s source
 code. Alice tested the Rust PR backported to an older compiler. Peter would like that Rust provides a
 stable `core` which can be pulled into the kernel: "Relying on that much out of tree code is
 'unfortunate'". - Miguel ] [ Reduced splat. - Miguel ] (CVE-2025-38033)

Solution

Update the linux library and its related packages to version 6.12.31 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-38033

Plugin Details

Severity: Medium

ID: 455306

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.26

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-38033

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/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: 1/20/2026

Vulnerability Publication Date: 6/18/2025

Reference Information

CVE: CVE-2025-38033