CVE-2004-0413: libsvn_ra_svn in Subversion 1.0.4 trusts the length field of (1) svn://, (2) svn+ssh://, and (3) other svn pro

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HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2004-0413 is a high-severity flaw (CVSS 10.0) affecting openpkg, subversion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libsvn_ra_svn in Subversion 1.0.4 trusts the length field of (1) svn://, (2) svn+ssh://, and (3) other svn protocol URL strings, which allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via an integer overflow that leads to a heap-based buffer overflow.

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	5.9% (top 7%)
CISA exploited list	No
Published	2004-08-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: openpkg · subversion

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

Am I affected?

Timeline

2004-08-06 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

openpkg openpkg DOWNGRADE

Affected: all versions · 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison openpkg sudo apt install openpkg=<VERSION_BEFORE_2.0> sudo apt-mark hold openpkg

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

dnf --showduplicates list openpkg sudo dnf downgrade openpkg-<VERSION_BEFORE_2.0> sudo dnf versionlock add openpkg

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.

subversion subversion DOWNGRADE

Affected: 1.0 · 1.0.1 · 1.0.2 · 1.0.3 · 1.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison subversion sudo apt install subversion=<VERSION_BEFORE_1.0> sudo apt-mark hold subversion

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

dnf --showduplicates list subversion sudo dnf downgrade subversion-<VERSION_BEFORE_1.0> sudo dnf versionlock add subversion

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-2004-0413?

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

Is CVE-2004-0413 being exploited?

CVE-2004-0413 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-2004-0413 affect?

CVE-2004-0413 affects openpkg, subversion. Severity is high (CVSS 10.0). libsvn_ra_svn in Subversion 1.0.4 trusts the length field of (1) svn://, (2) svn+ssh://, and (3) other svn protocol URL strings, which allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary

How urgent is CVE-2004-0413?

Priority 58/100. Critical severity; EPSS top 7%: very likely to be exploited

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References

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