CVE-2018-6003

Publication date 22 January 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.

Read the notes from the security team

Status

Package Ubuntu Release Status
libtasn1-3 17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
libtasn1-6 17.10 artful
Fixed 4.12-2.1ubuntu0.1
16.04 LTS xenial
Fixed 4.7-3ubuntu0.16.04.3
14.04 LTS trusty
Not affected

Notes

leosilva

libtasn1-3 (precise) and libtasn1-6 (trusty) are not affected since vulnerable code was introduced in 4.3 bionic already has the fix

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 None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H