CVE-2017-6419

Publication date 6 August 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
clamav	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Fixed 0.99.2+addedllvm-0ubuntu0.14.04.2
libmspack	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Fixed 0.5-1ubuntu0.17.04.1
	16.04 LTS xenial	Fixed 0.5-1ubuntu0.16.04.1
	14.04 LTS trusty	Vulnerable

Notes

mdeslaur

clamav in xenial+ uses the system libmspack, trusty uses the embedded one.

Patch details

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

Package	Patch details
clamav	Upstream: a837736
libmspack	Upstream: 6139a0b

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3393-2
ClamAV vulnerabilities
17 August 2017

USN-3393-1
ClamAV vulnerabilities
17 August 2017

USN-3394-1
libmspack vulnerabilities
17 August 2017