CVE-2017-1000381

Publication date 7 July 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The c-ares function `ares_parse_naptr_reply()`, which is used for parsing NAPTR responses, could be triggered to read memory outside of the given input buffer if the passed in DNS response packet was crafted in a particular way.

From the Ubuntu Security Team

It was discovered that c-ares incorrectly handled certain NAPTR responses. A remote attacker could possibly use this issue to cause applications using c-ares to crash, resulting in a denial of service.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
c-ares	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.04 zesty	Fixed 1.12.0-1ubuntu0.1
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 1.10.0-3ubuntu0.2
	14.04 LTS trusty	Fixed 1.10.0-2ubuntu0.2
nodejs	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Fixed 4.2.6~dfsg-1ubuntu4.2+esm1 Ubuntu Pro
	14.04 LTS trusty	Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
c-ares	Upstream: https://c-ares.haxx.se/CVE-2017-1000381.patch
nodejs	Upstream: 80fe266

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N