Back to Database
Status published
Medium
CVE-2020-23856
Use-after-Free vulnerability in cflow 1.6 in the void call(char *name,...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-23856
Credits & Attribution
No credits recorded in the NVD database.
References
- https://lists.gnu.org/archive/html/bug-cflow/2020-07/msg00000.html
- https://github.com/yangjiageng/PoC/blob/master/PoC_cflow_uaf_parser_line1284
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZTTKZX274BVFZX7TMPEZG6UWL6UPMQF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BLSXGFK2NYPCJMPHSHE3W56ZU3ZO6RD7/
More from gnu
View All →CVE-2024-10524
GNU Wget is vulnerable to an SSRF attack when accessing partially-user-controlled shorthand URLs
Medium
6.5
CVE-2022-48339
An issue was discovered in GNU Emacs through 28.2. htmlfontify.el...
Unknown
0
CVE-2022-48338
An issue was discovered in GNU Emacs through 28.2. In...
Unknown
0
CVE-2022-48337
GNU Emacs through 28.2 allows attackers to execute commands via...
Unknown
0
CVE-2022-48303
GNU Tar through 1.34 has a one-byte out-of-bounds read that...
Unknown
0
Affected Vendor
Affected Software
cflow, fedora
Vulnerable Versions:
1.6, 33, 34
Timeline
Official Publish:
May 18th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.