CVE-2021-41043
tcpslice: use-after-free in extract_slice()
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.
Un uso de memoria previamente liberada en tcpslice desencadena AddressSanitizer, ningún otro impacto confirmado.
A heap use-after-free flaw was found in tcpslices' extract_slice(). This flaw allows an attacker with local network access to pass a specially crafted 'pcap' file to tcpslice, causing segmentation fault. This vulnerability halts or crashes the application, leading to a denial of service.
*Credits:
Mohammad Hosein Askari (@C0NSTANTINE110) - https://www.linkedin.com/in/mohammadhoseinaskari
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-09-13 CVE Reserved
- 2022-01-05 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-09-20 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
CAPEC
References (3)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/the-tcpdump-group/tcpslice/issues/11 | 2024-08-04 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-41043 | 2024-04-30 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2040392 | 2024-04-30 |