CVE-2010-0751: The ip_evictor function in ip_fragment.c in libnids before 1.24, as used in dsniff and possibly other products

Q: How do I fix CVE-2010-0751?

libnids: upgrade to 1.24; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2010-0751 being exploited?

CVE-2010-0751 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2010-0751 affect?

CVE-2010-0751 affects libnids, fedora. Severity is medium (CVSS 5.0). The ip_evictor function in ip_fragment.c in libnids before 1.24, as used in dsniff and possibly other products, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via crafted fragmented packets.

Q: How urgent is CVE-2010-0751?

Priority 45/100. EPSS top 10%: very likely to be exploited; Public exploit reference

This month

MEDIUM 5.0UPGRADEMITIGATE

CVE-2010-0751 is a medium-severity flaw (CVSS 5.0) affecting libnids, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ip_evictor function in ip_fragment.c in libnids before 1.24, as used in dsniff and possibly other products, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via crafted fragmented packets.

Why this priority

EPSS top 10%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-476
Published	2010-04-06
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: fedoraproject · libnids project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2010-04-06 16:30 UTCPublished CVE record published
2026-06-16 23:16 UTCUpdated Record last modified

libnids project libnids UPGRADE

Affected: < 1.24

Fixed in: 1.24

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libnids || rpm -q libnids || libnids --version

2. UPGRADE to 1.24 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libnids

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libnids

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 11 · 12 · 13

Fixed in: no fixed release known

Safe to downgrade to: a release before 11

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2010-0751?

libnids: upgrade to 1.24; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2010-0751 being exploited?

CVE-2010-0751 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2010-0751 affect?

CVE-2010-0751 affects libnids, fedora. Severity is medium (CVSS 5.0). The ip_evictor function in ip_fragment.c in libnids before 1.24, as used in dsniff and possibly other products, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via crafted fragmented packets.

How urgent is CVE-2010-0751?

Priority 45/100. EPSS top 10%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2003-0850 HIGH 7.5 DOWNGRADE DOWNGRADE The TCP reassembly functionality in libnids before 1.18 allows remote attackers to cause "memory corruption" a

References

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