DEBIAN-CVE-2026-6554

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Source
https://security-tracker.debian.org/tracker/CVE-2026-6554
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6554.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-6554
Upstream
Published
2026-09-05T19:16:56Z
Modified
2026-09-14T05:00:10Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations. In particular uncommon use cases a crafted filter program can cause the interpreter to loop infinitely.

References

Affected packages

Debian:12 / libpcap

Package

Name
libpcap
Purl
pkg:deb/debian/libpcap?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.10.3-1
1.10.4-1
1.10.4-2
1.10.4-3
1.10.4-4
1.10.4-4.1~exp1
1.10.4-4.1
1.10.4-5
1.10.4-5+hurd.1
1.10.5-1
1.10.5-2
1.10.6-1
1.10.6-2
1.10.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6554.json"

Debian:13 / libpcap

Package

Name
libpcap
Purl
pkg:deb/debian/libpcap?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.10.5-2
1.10.6-1
1.10.6-2
1.10.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6554.json"

Debian:14 / libpcap

Package

Name
libpcap
Purl
pkg:deb/debian/libpcap?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.10.7-1

Affected versions

1.*
1.10.5-2
1.10.6-1
1.10.6-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6554.json"