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CVE-2024-35823 (GCVE-0-2024-35823)

Vulnerability from cvelistv5 – Published: 2024-05-17 13:23 – Updated: 2026-05-12 11:52
VLAI
Title
vt: fix unicode buffer corruption when deleting characters
Summary
In the Linux kernel, the following vulnerability has been resolved: vt: fix unicode buffer corruption when deleting characters This is the same issue that was fixed for the VGA text buffer in commit 39cdb68c64d8 ("vt: fix memory overlapping when deleting chars in the buffer"). The cure is also the same i.e. replace memcpy() with memmove() due to the overlaping buffers.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-17 15:14 UTC
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < fc7dfe3d123f00e720be80b920da287810a1f37d (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < ff7342090c1e8c5a37015c89822a68b275b46f8a (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 1ce408f75ccf1e25b3fddef75cca878b55f2ac90 (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 0190d19d7651c08abc187dac3819c61b726e7e3f (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 994a1e583c0c206c8ca7d03334a65b79f4d8bc51 (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 7529cbd8b5f6697b369803fe1533612c039cabda (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 2933b1e4757a0a5c689cf48d80b1a2a85f237ff1 (git)
Affected: 81732c3b2fede049a692e58a7ceabb6d18ffb18c , < 1581dafaf0d34bc9c428a794a22110d7046d186d (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.7
Unaffected: 0 , < 3.7 (semver)
Unaffected: 4.19.312 , ≤ 4.19.* (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.84 , ≤ 6.1.* (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website

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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvt: fix unicode buffer corruption when deleting characters\n\nThis is the same issue that was fixed for the VGA text buffer in commit\n39cdb68c64d8 (\"vt: fix memory overlapping when deleting chars in the\nbuffer\"). The cure is also the same i.e. replace memcpy() with memmove()\ndue to the overlaping buffers."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:11:40.928Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/fc7dfe3d123f00e720be80b920da287810a1f37d"
            },
            {
              "url": "https://git.kernel.org/stable/c/ff7342090c1e8c5a37015c89822a68b275b46f8a"
            },
            {
              "url": "https://git.kernel.org/stable/c/1ce408f75ccf1e25b3fddef75cca878b55f2ac90"
            },
            {
              "url": "https://git.kernel.org/stable/c/0190d19d7651c08abc187dac3819c61b726e7e3f"
            },
            {
              "url": "https://git.kernel.org/stable/c/994a1e583c0c206c8ca7d03334a65b79f4d8bc51"
            },
            {
              "url": "https://git.kernel.org/stable/c/7529cbd8b5f6697b369803fe1533612c039cabda"
            },
            {
              "url": "https://git.kernel.org/stable/c/2933b1e4757a0a5c689cf48d80b1a2a85f237ff1"
            },
            {
              "url": "https://git.kernel.org/stable/c/1581dafaf0d34bc9c428a794a22110d7046d186d"
            }
          ],
          "title": "vt: fix unicode buffer corruption when deleting characters",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-35823",
        "datePublished": "2024-05-17T13:23:25.651Z",
        "dateReserved": "2024-05-17T12:19:12.346Z",
        "dateUpdated": "2026-05-11T20:11:40.928Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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