DEBIAN-CVE-2026-15442

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Source

https://security-tracker.debian.org/tracker/CVE-2026-15442

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15442.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-15442

Upstream

CVE-2026-15442

Published

2026-09-27T10:16:56Z

Modified

2026-10-05T03:00:06Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

[none]

Details

In all builds that make use of (D)TLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSL_read() which is sometimes caused by a small user buffer passed in, then called wolfSSL_shutdown for a bidirectional close and attempted to wolfSSL_read() again while the peer continues trying to send data during the shutdown it would lead to a state where a potential heap-use-after free happened.

References

https://security-tracker.debian.org/tracker/CVE-2026-15442

Affected packages

Debian:12 / wolfssl

Package

Name: wolfssl
Purl: pkg:deb/debian/wolfssl?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.5.4-2

5.5.4-2+deb12u1

5.5.4-2+deb12u2

5.5.4-2+deb12u3

5.5.4-2.1

5.6.4-1

5.6.4-2

5.6.6-1

5.6.6-1.1

5.6.6-1.2

5.6.6-1.3~exp1

5.6.6-1.3

5.7.0-0.1

5.7.0-0.2

5.7.0-0.3

5.7.2-0.1

5.7.2-0.2

5.7.2-0.3

5.7.2-0.4

5.8.2-1

5.8.2-1.1

5.8.2-1.2

5.8.4-1

5.9.0-0.1

5.9.0-0.2

5.9.1-0.1

5.9.2-1

Ecosystem specific

{
    "urgency":  "end-of-life"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15442.json"

Debian:13 / wolfssl