CVE-2003-1288: Multiple race conditions in Linux-VServer 1.22 with Linux kernel 2.4.23 and SMP allow local users to cause a d

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MEDIUM 5.0WATCHLISTDOWNGRADE

CVE-2003-1288 is a medium-severity flaw (CVSS 5.0) affecting linux-vserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple race conditions in Linux-VServer 1.22 with Linux kernel 2.4.23 and SMP allow local users to cause a denial of service (kernel oops) via unknown attack vectors related to the (1) s_info and (2) ip_info data structures and the (a) forget_original_parent, (b) goodness, (c) schedule, (d) update_process_times, and (e) vc_new_s_context functions.

Why this priority

Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: vserver

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

vserver linux-vserver DOWNGRADE

Affected: 1.22

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.22

1. Check installed version

apt-cache policy linux-vserver || rpm -q linux-vserver || linux-vserver --version

2. No fixed release: DOWNGRADE to a release before 1.22 (Debian / Ubuntu)

apt-cache madison linux-vserver sudo apt install linux-vserver=<VERSION_BEFORE_1.22> sudo apt-mark hold linux-vserver

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list linux-vserver sudo dnf downgrade linux-vserver-<VERSION_BEFORE_1.22> sudo dnf versionlock add linux-vserver

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2003-1288?

linux-vserver: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-1288 being exploited?

CVE-2003-1288 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-2003-1288 affect?

CVE-2003-1288 affects linux-vserver. Severity is medium (CVSS 5.0). Multiple race conditions in Linux-VServer 1.22 with Linux kernel 2.4.23 and SMP allow local users to cause a denial of service (kernel oops) via unknown attack vectors related to the (1) s_info and (2) ip_info data structures and the (a) fo

How urgent is CVE-2003-1288?

Priority 47/100. Public exploit reference; On your watchlist

Software pages

Linux kernel vulnerabilities

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References

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