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Review reviewHigh

CVE-2024-35905

Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Protect against int overflow for stack access size This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). Thi...

CVSS
7.8
EPSS
0.22%
13.0% percentile
CISA KEV
Not listed
Published
2024.05.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.22%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: bpf: Protect against int overflow for stack access size This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). Thi...

Affected product and versions

Product
Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel
Affected versions
>= afea95d319ccb4ad2060dece9ac5e2e364dec543 < 9970e059af471478455f9534e8c3db82f8c5496d, >= 02962684258eb53f414a8a59854767be526e6abb < 37dc1718dc0c4392dbfcb9adec22a776e745dd69, >= b1d4d54d32ce6342f5faffe71bae736540ce7cb5 < 98cdac206b112bec63852e94802791e316acc2c1, >= 08b91babccbb168353f8d43fea0ed28a4cad568c < 3f0784b2f1eb9147973d8c43ba085c5fdf44ff69, >= a833a17aeac73b33f79433d7cee68d5cafd71e4f < 203a68151e8eeb331d4a64ab78303f3a15faf103, >= a833a17aeac73b33f79433d7cee68d5cafd71e4f < ecc6a2101840177e57c925c102d2d29f260d37c8, >= 1858b8a331937f3976d8482cd5f6e1f945294ad3, >= 5.10.209 < 5.10.215, >= 5.15.148 < 5.15.154, >= 6.1.75 < 6.1.85, >= 6.6.14 < 6.6.26, >= 6.7.2 < 6.8, >= 6.8, >= 6.7.2 < 6.8.5, 6.9, 10.0
Fixed versions
5.10.215, 5.15.154, 6.1.85, 6.6.26, 6.8.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-129, CWE-190
CVE-2024-35905 — Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel | SECUFOCUS NOW