CVE-2026-24028

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-24028 NameCVE-2026-24028 DescriptionAn attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure. SourceCVE (at NVD; CERT, ENISA,…

CVE-2026-24028

Name	CVE-2026-24028
Description	An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6235-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dnsdist (PTS)	bullseye	1.5.1-3	vulnerable
	bookworm	1.7.3-2	vulnerable
	trixie (security), trixie	1.9.14-0+deb13u1	fixed
	forky	2.0.5-1	fixed
	sid	2.0.5-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin
dnsdist	source	bullseye	(unfixed)	end-of-life
dnsdist	source	bookworm	(unfixed)	end-of-life
dnsdist	source	trixie	1.9.14-0+deb13u1		DSA-6235-1
dnsdist	source	(unstable)	2.0.3-1

Notes

[bookworm] - dnsdist <end-of-life> (See #1119290)
[bullseye] - dnsdist <end-of-life> (see #1119290)
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html
https://downloads.powerdns.com/patches/2026-02/

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[bookworm] - dnsdist <end-of-life> (See #1119290)[bullseye] - dnsdist <end-of-life> (see #1119290)https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.htmlhttps://downloads.powerdns.com/patches/2026-02/

OS impact

OS	Version	Status	Fixed in
debian	bookworm	affected
debian	bullseye	affected
debian	forky	fixed	`2.0.3-1`
debian	sid	fixed	`2.0.3-1`
debian	trixie	fixed	`1.9.14-0+deb13u1`
sles		affected

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.