Description
Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Tcpdump Group | tcpslice | unspecified – < 1.5 | 1.5 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tcpslice | 1.5-1 | — |
| Debian 13 | tcpslice | 1.5-1 | — |
| Debian 12 | tcpslice | 1.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | tcpslice | No fix yet | — |
| Ubuntu 26.04 LTS | tcpslice | No fix yet | — |
| Ubuntu 25.10 | tcpslice | No fix yet | — |
| Ubuntu 24.04 LTS | tcpslice | No fix yet | — |
| Ubuntu 22.04 LTS | tcpslice | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | tcpslice | No fix yet | — |
| Ubuntu 18.04 LTS | tcpslice | No fix yet | — |
| Ubuntu 16.04 LTS | tcpslice | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tcpdump | 14:4.99.0-9.el9 | RHSA-2024:2211 |
| RHEL 8 | tcpdump | 14:4.9.3-3.el8_9.1 | RHSA-2024:0769 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | tcpdump | 14:4.99.0-6.el9_2.1 | RHSA-2024:1090 |
| RHEL 8.8 EUS | tcpdump | 14:4.9.3-3.el8_8.1 | RHSA-2024:0571 |
| RHEL 8.6 EUS | tcpdump | 14:4.9.3-3.el8_6.1 | RHSA-2024:0410 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | tcpdump | 14:4.99.0-9.el9 | ALSA-2024:2211 |
| AlmaLinux 8 | tcpdump | 14:4.9.3-3.el8_9.1.alma.1 | ALSA-2024:0769 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | tcpdump | 4:4.99.0-9.el9 | RLSA-2024:2211 |
| Rocky Linux 8 | tcpdump | 4:4.9.3-3.el8_9.1 | RLSA-2024:0769 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tcpdump | 14:4.99.0-9.el9 | ELSA-2024-2211 |
| Oracle Linux 8 | tcpdump | 14:4.9.3-3.el8_9.1 | ELSA-2024-0769 |
Advisories 12
- ALSA-2024:2211 Moderate: tcpdump security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0769 Moderate: tcpdump security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2024-0218 Red Hat Enterprise Linux's oniguruma, tcpslice, c-ares: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 21, 2026
- RHSA-2024:1090 Red Hat Security Advisory: tcpdump security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0769 Red Hat Security Advisory: tcpdump security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0571 Red Hat Security Advisory: tcpdump security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0410 Red Hat Security Advisory: tcpdump security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:2211 Red Hat Security Advisory: tcpdump security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RLSA-2024:0769 Moderate: tcpdump security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:2211 Moderate: tcpdump security update Rocky Linux Security Advisories · Oct 7, 2025
- ELSA-2024-2211 Moderate: tcpdump security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ELSA-2024-0769 Moderate: tcpdump security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 13, 2024