CVE-2017-11423

Publication date 18 July 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The cabd_read_string function in mspack/cabd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2 and other products, allows remote attackers to cause a denial of service (stack-based buffer over-read and application crash) via a crafted CAB file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
clamav	24.10 oracular	Not affected
	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	Not affected
libmspack	24.10 oracular	Not affected
	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
	16.10 yakkety	Ignored end of life
	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. code in trusty clamav is different, doesn't appear vulnerable

Patch details

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

Package	Patch details
clamav	Upstream: ffa3126 Upstream: ada5f94
libmspack	Upstream: 1703820

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3394-1
libmspack vulnerabilities
17 August 2017