Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.
Priority LOW 27CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 5 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.
Why it matters now
EPSS 0.00931 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial tcpslice (The Tcpdump Group): 1.5Red Hat: 5 advisoriesRed Hat: 5 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The Tcpdump Group | tcpslice | before 1.5 | 1.5 | Patch available | CNA |
- tcpslice VendorThe Tcpdump Group Affected before 1.5 Fixed in 1.5 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tcpdump:tcpslice:*:*:*:*:*:*:*:* | before 1.5 | Vulnerable | The Tcpdump Group |
- cpe:2.3:a:tcpdump:tcpslice:*:*:*:*:*:*:*:* Versions before 1.5 Vulnerable ·The Tcpdump Group
Remediation
- Fix · CNA tcpslice (The Tcpdump Group) Fixed in 1.5
Red Hat 5 advisories
- RHSA-2024:2211 Released 2024-04-30 · Red Hat rating Moderatetcpdump security update
- Red Hat Enterprise Linux AppStream (v. 9) tcpdump-14:4.99.0-9.el9
- RHSA-2024:1090 Released 2024-03-05 · Red Hat rating Moderatetcpdump security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) tcpdump-14:4.99.0-6.el9_2.1
- RHSA-2024:0769 Released 2024-02-12 · Red Hat rating Moderatetcpdump security update
- Red Hat Enterprise Linux AppStream (v. 8) tcpdump-14:4.9.3-3.el8_9.1
Show 2 more Red Hat advisories
- RHSA-2024:0571 Released 2024-01-30 · Red Hat rating Moderatetcpdump security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) tcpdump-14:4.9.3-3.el8_8.1
- RHSA-2024:0410 Released 2024-01-25 · Red Hat rating Moderatetcpdump security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) tcpdump-14:4.9.3-3.el8_6.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:0769 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2211 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2024:0410 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:0571 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:1090 |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41043
- 2026-10-03 Alias added: GHSA-hgc7-hm7p-p5cj
References
Sources
- CVE-2021-41043 · CVE Program
- CVE-2021-41043 · NVD
- FIRST EPSS
- GHSA-hgc7-hm7p-p5cj · GitHub Advisory Database · CC BY 4.0
- CVE-2021-41043 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences