# CVE-2023-1916: CVE-2023-1916

Status: published. Published: 2023-04-10. Updated: 2026-11-02.

A flaw was found in tiffcrop, a program distributed by the libtiff package. A specially crafted tiff file can lead to an out-of-bounds read in the extractImageSection function in tools/tiffcrop.c, resulting in a denial of service and limited information disclosure. This issue affects libtiff versions 4.x.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / libtiff: libtiff versions 4.x and newer are affected (affected). Source: CNA: redhat

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "4.5.0",
            "versionStartIncluding": "4.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H; source: NVD: nvd@nist.gov

- CISA KEV: No listing in collected sources

- EPSS: 0.36% as of 2026-11-02; percentile 30.40%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-125

## Exploit evidence

- exploit: https://gitlab.com/libtiff/libtiff/-/issues/537 (secalert@redhat.com)
- exploit: https://gitlab.com/libtiff/libtiff/-/issues/536 (nvd@nist.gov)
- exploit: https://gitlab.com/libtiff/libtiff/-/issues/537 (af854a3a-2127-422b-91ae-364da2661108)

## References

- https://gitlab.com/libtiff/libtiff/-/issues/536%2C (CNA: redhat)

- https://gitlab.com/libtiff/libtiff/-/issues/537 (CNA: redhat)

- https://support.apple.com/kb/HT213844 (CNA: redhat)

- https://gitlab.com/libtiff/libtiff/-/issues/536%2C (ADP: CVE; x_transferred)

- https://gitlab.com/libtiff/libtiff/-/issues/537 (ADP: CVE; x_transferred)

- https://support.apple.com/kb/HT213844 (ADP: CVE; x_transferred)

- https://gitlab.com/libtiff/libtiff/-/issues/536%2C (secalert@redhat.com)

- https://gitlab.com/libtiff/libtiff/-/issues/537 (secalert@redhat.com; Exploit, Issue Tracking)

- https://support.apple.com/kb/HT213844 (secalert@redhat.com)

- https://gitlab.com/libtiff/libtiff/-/issues/536 (nvd@nist.gov; Exploit, Issue Tracking)

- https://gitlab.com/libtiff/libtiff/-/issues/536%2C (af854a3a-2127-422b-91ae-364da2661108)

- https://gitlab.com/libtiff/libtiff/-/issues/537 (af854a3a-2127-422b-91ae-364da2661108; Exploit, Issue Tracking)

- https://support.apple.com/kb/HT213844 (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2023-1916; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1916; retrieved 2026-11-03; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2023-1916; retrieved 2026-11-02; source updated Not reported

Revision: 331bd9e4197354927b0251cf4c347eed5a27ecc0e2f15ccc9cc98d27cb4bbcd1

Canonical: https://y2.dev/cve/CVE-2023-1916

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.