Description
gopacket provides packet processing capabilities for Go. In version 1.6.0 and earlier, the sFlow ExtendedGatewayFlow decoder in layers/sflow.go reads an attacker-controlled 32-bit community count and AS path member count and sizes a slice allocation from those counts without bounding them against the bytes remaining in the datagram, so a 104-byte UDP datagram can drive an allocation of up to 16 GiB and cause an unauthenticated remote denial of service. This issue is fixed in version 1.6.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| gopacket | gopacket | < 1.6.1 | — |
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 | gopacket +1 | No fix yet | — |
| Debian 13 | gopacket +1 | No fix yet | — |
| Debian 12 | gopacket +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gopacket +1 | No fix yet | — |
| Ubuntu 26.04 LTS | gopacket +1 | No fix yet | — |
| Ubuntu 24.04 LTS | gopacket +1 | No fix yet | — |
| Ubuntu 22.04 LTS | gopacket | No fix yet | — |
| Ubuntu 20.04 LTS | gopacket | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | gopacket | No fix yet | — |
| Ubuntu 16.04 LTS | gopacket | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | govulncheck-vulndb | 0.0.20260827T195228-160000.1.1 | SUSE-SU-2026:23625-1 |
| SLES 16.0 | govulncheck-vulndb | 0.0.20260827T195228-160000.1.1 | SUSE-SU-2026:23625-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260827T195228-160000.1.1 | openSUSE-SU-2026:21761-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | telegraf | 1.31.0-31 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | calico-node-3.32 +1 | 3.32.1-r8 | — |
| Wolfi rolling | calico-typhad-3.32 +2 | 3.32.2-r3 | — |
| Wolfi rolling | cilium-1.19 +2 | 1.19.6-r5 | — |
| Wolfi rolling | fq | 0.17.0-r12 | — |
| Wolfi rolling | telegraf-1.38 | 1.38.4-r17 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/gopacket/gopacket | < 1.6.1 | 1.6.1 | GHSA-g6v3-7xmc-w563 |
Advisories 2
- SUSE-SU-2026:23625-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Sep 29, 2026
- openSUSE-SU-2026:21761-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Sep 9, 2026