CVE-2020-23856

CWE-416 — Use After Free5 documents5 sources
Severity
5.5MEDIUM
EPSS
0.1%
top 70.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Fedoraproject FedoraGNU Cflow
Timeline
PublishedMay 18
Latest updateMay 24

Description

Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶Debiancflow< 1:1.6-6+2
▶NVDgnu/cflow1.6

Also affects: Fedora 33, 34

🔴Vulnerability Details

3
GHSA
GHSA-h5qf-rf3c-vmj5: Use-after-Free vulnerability in cflow 1↗2022-05-24
▶
CVEList
CVE-2020-23856: Use-after-Free vulnerability in cflow 1↗2021-05-18
▶
OSV
CVE-2020-23856: Use-after-Free vulnerability in cflow 1↗2021-05-18
▶

📋Vendor Advisories

1
Debian
CVE-2020-23856: cflow - Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line)...↗2020
▶
CVE-2020-23856 (MEDIUM CVSS 5.5) | Use-after-Free vulnerability in cfl | cvebase.io