Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2014-0098: The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server before 2.4.

47
This week
MEDIUM 5.0WATCHLISTUPGRADEDOWNGRADEDOWNGRADE

CVE-2014-0098 is a medium-severity flaw (CVSS 5.0) affecting http server, http server, secure global desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server before 2.4.8 allows remote attackers to cause a denial of service (segmentation fault and daemon crash) via a crafted cookie that is not properly handled during truncation.

Why this priority

  • EPSS top 2%: very likely to be exploited
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score5.0 (Medium)
EPSS exploit chance26.7% (top 2%)
CISA exploited listNo
Published2014-03-18
Last modified2026-06-17
Publisher (CNA): Red Hat, Inc. · Vendor: apache · canonical · oracle

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apache http server UPGRADE
Affected: >= 2.2.0 and < 2.2.27 · >= 2.4.1 and < 2.4.9
Fixed in: 2.2.27, 2.4.9
Safe to downgrade to: a release before 2.2.0
1. Check installed version
apt-cache policy http-server || rpm -q http-server || http-server --version
2. UPGRADE to 2.2.27 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade http-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade http-server
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)
apt-cache madison http-server sudo apt install http-server=<VERSION_BEFORE_2.2.0> sudo apt-mark hold http-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list http-server sudo dnf downgrade http-server-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add http-server
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.
oracle http server DOWNGRADE
Affected: 10.1.3.5.0 · 11.1.1.7.0 · 12.1.2.0 · 12.1.3.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.1.3.5.0
1. Check installed version
apt-cache policy http-server || rpm -q http-server || http-server --version
2. No fixed release: DOWNGRADE to a release before 10.1.3.5.0 (Debian / Ubuntu)
apt-cache madison http-server sudo apt install http-server=<VERSION_BEFORE_10.1.3.5.0> sudo apt-mark hold http-server
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list http-server sudo dnf downgrade http-server-<VERSION_BEFORE_10.1.3.5.0> sudo dnf versionlock add http-server
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.
oracle secure global desktop DOWNGRADE
Affected: 4.63 · 4.71 · 5.0 · 5.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.63
1. Check installed version
apt-cache policy secure-global-desktop || rpm -q secure-global-desktop || secure-global-desktop --version
2. No fixed release: DOWNGRADE to a release before 4.63 (Debian / Ubuntu)
apt-cache madison secure-global-desktop sudo apt install secure-global-desktop=<VERSION_BEFORE_4.63> sudo apt-mark hold secure-global-desktop
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list secure-global-desktop sudo dnf downgrade secure-global-desktop-<VERSION_BEFORE_4.63> sudo dnf versionlock add secure-global-desktop
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: 10.04 · 12.04 · 12.10 · 13.10
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.04
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.
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-2014-0098?

http server: upgrade to 2.2.27, 2.4.9; http server: downgrade or apply the listed mitigation; secure global desktop: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-0098 being exploited?

CVE-2014-0098 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-2014-0098 affect?

CVE-2014-0098 affects http server, http server, secure global desktop. Severity is medium (CVSS 5.0). The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server before 2.4.8 allows remote attackers to cause a denial of service (segmentation fault and daemon crash) via a crafted cookie that is not prop

How urgent is CVE-2014-0098?

Priority 47/100. EPSS top 2%: very likely to be exploited; On your watchlist

Software pages

Apache HTTP Server vulnerabilities · Ubuntu vulnerabilities

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.