Use After Free in Gnu Cflow
CVE-2020-23856
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.
Vulnerability class: Use-After-Free
EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Gnu Cflow — versions 1.6
- Fedoraproject Fedora — versions 33, 34
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Mailing List, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2020-23856?
- CVE-2020-23856 is a medium-severity vulnerability in Gnu Cflow, classified under Use After Free. CVSS score: 5.5/10. Published 2021-05-18.
- How severe is CVE-2020-23856?
- Medium severity. CVSS v3 base score is 5.5 out of 10.