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Ubuntu LinuxOperating system · Canonical

CVE-2007-3798

CRITICAL · 9.8 CVSS v3.1 Published 2007-07-16
Fix available
A fix is available. Upgrade to 5.5 / 6.1 or later.
See remediation →
100/100
Remediation priority · Urgent
High EPSS Public exploit Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows remote attackers to execute arbitrary code via crafted TLVs in a BGP packet, related to an unchecked return value.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ubuntu LinuxOperating system
Affected:= 6.06= 6.10= 7.04
Debian LinuxOperating system
Affected:= 3.1= 4.0
FreeBSDOperating system
Affected:>= 5.0, < 5.5>= 6.0, < 6.1= 5.5= 6.1= 6.2
TcpdumpApplication
Affected:<= 3.9.6
SlackwareApplication
Affected:= 9.0= 9.1= 10.0= 10.1= 10.2= 11.0= 12.0
Mac Os XOperating system
Affected:>= 10.0.0, < 10.4.11
Mac Os X ServerOperating system
Affected:>= 10.0.0, < 10.4.11

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.5 / 6.1 / 10.4.11 or later
Fixed in 5.56.110.4.11
Vendor patch slackware.com →
Recommended fix High confidence

tcpdump >= 3.9.7 (or latest stable version)

  1. 1. Identify the tcpdump version currently installed: `tcpdump --version` or `dpkg -l | grep tcpdump` (Debian/Ubuntu) / `rpm -q tcpdump` (Red Hat/FreeBSD)
  2. 2. For tcpdump standalone installations: upgrade to tcpdump version 3.9.7 or later from the official tcpdump.org source
  3. 3. For Ubuntu systems (6.06, 6.10, 7.04): apply Ubuntu security updates via `apt-get update && apt-get upgrade tcpdump` or upgrade to a newer Ubuntu release
  4. 4. For Debian systems (3.1, 4.0): apply Debian security updates via `apt-get update && apt-get install tcpdump`
  5. 5. For FreeBSD systems (5.x, 6.x): upgrade to FreeBSD 5.5 or 6.1 or later, or rebuild tcpdump from ports with the security patch applied
  6. 6. For Mac OS X (10.0.0 - 10.4.10): apply Apple Security Update 2007-005 or later (which includes Mac OS X 10.4.11)
  7. 7. For Slackware systems (9.0, 9.1, 10.0, 10.1): apply the Slackware security patch from http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.449313
  8. 8. Verify the fix by checking the tcpdump version and ensuring it is >= 3.9.7
Caveat Upgrading tcpdump should not cause breaking changes as it is a passive network packet analyzer; ensure any custom BPF filters or scripts using tcpdump are tested after upgrade

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2007-3798 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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