CVE-2024-44966

2024-09-0419:15:31

Linux

web.nvd.nist.gov

linux kernel

vulnerability resolved

binfmt_flat

corruption fix

risc-v

flat format

array initialization

shared library pointers.

AI Score

7.5

Confidence

Low

EPSS

Percentile

16.3%

JSON

In the Linux kernel, the following vulnerability has been resolved:

binfmt_flat: Fix corruption when not offsetting data start

Commit 04d82a6d0881 (“binfmt_flat: allow not offsetting data start”)
introduced a RISC-V specific variant of the FLAT format which does
not allocate any space for the (obsolete) array of shared library
pointers. However, it did not disable the code which initializes the
array, resulting in the corruption of sizeof(long) bytes before the DATA
segment, generally the end of the TEXT segment.

Introduce MAX_SHARED_LIBS_UPDATE which depends on the state of
CONFIG_BINFMT_FLAT_NO_DATA_START_OFFSET to guard the initialization of
the shared library pointer region so that it will only be initialized
if space is reserved for it.

Affected configurations

Vulners

Node

linuxlinux_kernelRange5.13–5.15.165

linuxlinux_kernelRange5.16.0–6.1.106

linuxlinux_kernelRange6.2.0–6.6.47

linuxlinux_kernelRange6.7.0–6.10.6

linuxlinux_kernelRange6.11.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/binfmt_flat.c"
    ],
    "versions": [
      {
        "version": "04d82a6d0881",
        "lessThan": "3a684499261d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04d82a6d0881",
        "lessThan": "af65d5383854",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04d82a6d0881",
        "lessThan": "49df34d2b7da",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04d82a6d0881",
        "lessThan": "9350ba06ee61",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "04d82a6d0881",
        "lessThan": "3eb3cd5992f7",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/binfmt_flat.c"
    ],
    "versions": [
      {
        "version": "5.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.13",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.106",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.47",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.6",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]