Vulnerability-Lookup

FKIE_CVE-2022-49058

Vulnerability from fkie_nvd - Published: 2025-02-26 07:00 - Updated: 2025-10-01 20:15

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.18
linux	linux_kernel	5.18

JSON

To clipboard

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    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: desbordamiento de b\u00fafer potencial al manejar enlaces simb\u00f3licos Smatch imprimi\u00f3 una advertencia: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() \u0027dctx-\u0026gt;buf\u0027 demasiado peque\u00f1o (16 vs u32max) Esto se debe a que Smatch marca \u0027link_len\u0027 como no confiable ya que proviene de sscanf(). Agregue una verificaci\u00f3n para asegurarse de que \u0027link_len\u0027 no sea m\u00e1s grande que el tama\u00f1o del b\u00fafer \u0027link_str\u0027."
    }
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  "id": "CVE-2022-49058",
  "lastModified": "2025-10-01T20:15:44.330",
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CVE-2022-49058 (GCVE-0-2022-49058)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2025-10-01 19:57

Title

cifs: potential buffer overflow in handling symlinks

Summary

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/3e582749e742e662a…
	https://git.kernel.org/stable/c/1316c28569a80ab35…
	https://git.kernel.org/stable/c/eb5f51756944735ac…
	https://git.kernel.org/stable/c/22d658c6c5affed10…
	https://git.kernel.org/stable/c/4e166a41180be2f1e…
	https://git.kernel.org/stable/c/9901b07ba42b39266…
	https://git.kernel.org/stable/c/515e7ba11ef043d6f…
	https://git.kernel.org/stable/c/64c4a37ac04eeb43c…

Impacted products

Vendor

Product

Version

Linux

Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 3e582749e742e662a8e9bb37cffac62dccaaa1e2 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 1316c28569a80ab3596eeab05bf5e01991e7e739 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < eb5f51756944735ac70cd8bb38637cc202e29c91 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 22d658c6c5affed10c8907e67160cef0b6c92186 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 4e166a41180be2f1e66bbb6d46448e80a9a5ec05 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 9901b07ba42b39266b34a888e48d7306fd707bee (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 515e7ba11ef043d6febe69389949c8ef5f25e9d0 (git)
Affected: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 , < 64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304 (git)

Linux

Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.239 , ≤ 4.19.* (semver)
Unaffected: 5.4.190 , ≤ 5.4.* (semver)
Unaffected: 5.10.112 , ≤ 5.10.* (semver)
Unaffected: 5.15.35 , ≤ 5.15.* (semver)
Unaffected: 5.17.4 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
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              "confidentialityImpact": "HIGH",
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                "options": [
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                    "Exploitation": "none"
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                  {
                    "Automatable": "no"
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:50:01.997451Z",
                "version": "2.0.3"
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        "problemTypes": [
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                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: potential buffer overflow in handling symlinks\n\nSmatch printed a warning:\n\tarch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error:\n\t__memcpy() \u0027dctx-\u003ebuf\u0027 too small (16 vs u32max)\n\nIt\u0027s caused because Smatch marks \u0027link_len\u0027 as untrusted since it comes\nfrom sscanf(). Add a check to ensure that \u0027link_len\u0027 is not larger than\nthe size of the \u0027link_str\u0027 buffer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:28:50.644Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91"
        },
        {
          "url": "https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05"
        },
        {
          "url": "https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee"
        },
        {
          "url": "https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304"
        }
      ],
      "title": "cifs: potential buffer overflow in handling symlinks",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49058",
    "datePublished": "2025-02-26T01:54:29.195Z",
    "dateReserved": "2025-02-26T01:49:39.243Z",
    "dateUpdated": "2025-10-01T19:57:06.701Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2022-49058

CVE-2022-49058 (GCVE-0-2022-49058)

Tags

Sightings

Nomenclature