# CVE-2024-1013: Unixodbc: out of bounds stack write due to pointer-to-integer types conversion

Status: published. Published: 2024-03-18. Updated: 2026-11-05.

An out-of-bounds stack write flaw was found in unixODBC on 64-bit architectures where the caller has 4 bytes and callee writes 8 bytes. This issue may go unnoticed on little-endian architectures, while big-endian architectures can be broken.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 6 (unixODBC): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (compat-unixODBC234): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (unixODBC): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (unixODBC): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (unixODBC): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.8 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.28% as of 2026-11-04; percentile 21.04%

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

- Weaknesses: CWE-823

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2024-1013 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2260823 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/lurcher/unixODBC/pull/157 (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2024-1013 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2260823 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://github.com/lurcher/unixODBC/pull/157 (ADP: CVE; x_transferred)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-1013; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-1013; retrieved 2026-11-05; source updated Not reported

Revision: cd418d2ef9bb6ef8fe3d7dd5810c0db7224e231f094265a4fa4486d97b110cf4

Canonical: https://y2.dev/cve/CVE-2024-1013

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