CVE-2013-2112: The svnserve server in Subversion before 1.6.23 and 1.7.x before 1.7.10 allows remote attackers to cause a den

This month

HIGH 7.8WATCHLISTUPGRADEDOWNGRADEMITIGATE

CVE-2013-2112 is a high-severity flaw (CVSS 7.8) affecting subversion, subversion, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The svnserve server in Subversion before 1.6.23 and 1.7.x before 1.7.10 allows remote attackers to cause a denial of service (exit) by aborting a connection.

Why this priority

High severity
EPSS top 10%: very likely to be exploited
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2013-07-31
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: apache · canonical · collabnet · opensuse

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

Am I affected?

Timeline

2013-07-31 13:20 UTCPublished CVE record published
2026-06-16 23:52 UTCUpdated Record last modified

apache subversion UPGRADE

Affected: <= 1.6.21 · 1.6.0 · 1.6.1 · 1.6.2 · 1.6.3 · 1.6.4 · 1.6.5 · 1.6.6

Fixed in: newer than 1.6.21

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.6.21 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade subversion

Note

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

collabnet subversion DOWNGRADE

Affected: 1.6.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6.17

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6.17 (Debian / Ubuntu)

apt-cache madison subversion sudo apt install subversion=<VERSION_BEFORE_1.6.17> sudo apt-mark hold subversion

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

dnf --showduplicates list subversion sudo dnf downgrade subversion-<VERSION_BEFORE_1.6.17> 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.

canonical ubuntu linux MITIGATE

Affected: 12.04 · 12.10 · 13.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.04

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.

opensuse opensuse MITIGATE

Affected: 11.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.4

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-2013-2112?

subversion: upgrade to newer than 1.6.21; subversion: downgrade or apply the listed mitigation; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-2112 being exploited?

CVE-2013-2112 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-2013-2112 affect?

CVE-2013-2112 affects subversion, subversion, ubuntu linux. Severity is high (CVSS 7.8). The svnserve server in Subversion before 1.6.23 and 1.7.x before 1.7.10 allows remote attackers to cause a denial of service (exit) by aborting a connection.

How urgent is CVE-2013-2112?

Priority 55/100. High severity; EPSS top 10%: very likely to be exploited; On your watchlist

Software pages

Ubuntu vulnerabilities

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References

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