CVE-2019-16166

Publication date 9 September 2019

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Read the notes from the security team

Status

Package Ubuntu Release Status
cflow 24.10 oracular
Vulnerable
24.04 LTS noble
Vulnerable
23.10 mantic Ignored end of life, was needed
23.04 lunar Ignored end of life, was needed
22.10 kinetic Ignored end of life, was needed
22.04 LTS jammy
Vulnerable
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.10 groovy Ignored end of life
20.04 LTS focal
Vulnerable
19.10 eoan Ignored end of life
19.04 disco Ignored end of life
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Not in release

Notes


ccdm94

according to commit notes provided by upstream, the fix for this issue can be found in b9a7cd5e9d4. This is the same fix as the one for CVE-2019-16165. However, it seems like version 1.7, which would already include it, is still vulnerable to the issue, the reproducer file generating the same heap-based buffer overflow error when cflow is run with ASAN. Therefore, it seems like a patch for this vulnerability is still needed as of version 1.7.

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H