CVE-2002-1889: Off-by-one buffer overflow in the context_action function in context.c of Logsurfer 1.41 through 1.5a allows r

Routine

MEDIUM 5.0DOWNGRADE

CVE-2002-1889 is a medium-severity flaw (CVSS 5.0) affecting logsurfer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Off-by-one buffer overflow in the context_action function in context.c of Logsurfer 1.41 through 1.5a allows remote attackers to cause a denial of service (crash) via a malformed log entry.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: logsurfer

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

logsurfer logsurfer DOWNGRADE

Affected: 1.5 · 1.5a · 1.41

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison logsurfer sudo apt install logsurfer=<VERSION_BEFORE_1.5> sudo apt-mark hold logsurfer

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

dnf --showduplicates list logsurfer sudo dnf downgrade logsurfer-<VERSION_BEFORE_1.5> sudo dnf versionlock add logsurfer

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-2002-1889?

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

Is CVE-2002-1889 being exploited?

CVE-2002-1889 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-2002-1889 affect?

CVE-2002-1889 affects logsurfer. Severity is medium (CVSS 5.0). Off-by-one buffer overflow in the context_action function in context.c of Logsurfer 1.41 through 1.5a allows remote attackers to cause a denial of service (crash) via a malformed log entry.

How urgent is CVE-2002-1889?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2011-3626 HIGH 7.5 UPGRADE UPGRADE Double free vulnerability in the prepare_exec function in src/exec.c in Logsurfer 1.5b and earlier, and Logsur

References

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