CVE-2016-2225

high

Published 2017-03-24 · Modified 2026-05-13

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CVSS v3

7.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.5

Description

The __read_etc_hosts_r function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via a crafted packet.

Predictions

Exploit likelihood

83%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2016-2225 NameCVE-2016-2225 DescriptionThe __read_etc_hosts_r function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via a crafted packet. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) ReferencesDLA-561-1…

CVE-2016-2225

Name	CVE-2016-2225
Description	The __read_etc_hosts_r function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via a crafted packet.
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	DLA-561-1
Debian Bugs	990648

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
uclibc (PTS)	bookworm, bullseye, trixie	1.0.35-1	fixed
	forky, sid	1.0.54-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
uclibc	source	wheezy	0.9.32-1+deb7u1		DLA-561-1
uclibc	source	(unstable)	1.0.20-1	unimportant		990648

Notes

Just for cross-compiling, not used for actual packages
https://repo.or.cz/uclibc-ng.git/commit/6932f2282ba0578d6ca2f21eead920d6b78bc93c
https://www.openwall.com/lists/oss-security/2016/02/05/2

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

Just for cross-compiling, not used for actual packageshttps://repo.or.cz/uclibc-ng.git/commit/6932f2282ba0578d6ca2f21eead920d6b78bc93chttps://www.openwall.com/lists/oss-security/2016/02/05/2

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`1.0.20-1`
debian	bullseye	fixed	`1.0.20-1`
debian	forky	fixed	`1.0.20-1`
debian	sid	fixed	`1.0.20-1`
debian	trixie	fixed	`1.0.20-1`

Application impact

Vendor	Product	Versions	Fixed
uclibc-ng_project	uclibc-ng	`{"endIncluding":"1.0.11"}`

References

CWEs

CWE-400

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

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