CVE-2005-0373: Buffer overflow in digestmd5.c CVS release 1.170 (also referred to as digestmda5.c), as used in the DIGEST-MD5

This month

HIGH 7.5WATCHLISTDOWNGRADEDOWNGRADEDOWNGRADE

CVE-2005-0373 is a high-severity flaw (CVSS 7.5) affecting sasl, openpkg, suse cvsup. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in digestmd5.c CVS release 1.170 (also referred to as digestmda5.c), as used in the DIGEST-MD5 SASL plugin for Cyrus-SASL but not in any official releases, allows remote attackers to execute arbitrary code.

Why this priority

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

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2004-10-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: apple · conectiva · cyrus · openpkg · suse

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

Am I affected?

Timeline

2004-10-07 04:00 UTCPublished CVE record published
2026-06-16 22:10 UTCUpdated Record last modified

cyrus sasl DOWNGRADE

Affected: 1.5.24 · 1.5.27 · 1.5.28 · 2.1.9 · 2.1.10 · 2.1.11 · 2.1.12 · 2.1.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.24

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5.24 (Debian / Ubuntu)

apt-cache madison sasl sudo apt install sasl=<VERSION_BEFORE_1.5.24> sudo apt-mark hold sasl

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

dnf --showduplicates list sasl sudo dnf downgrade sasl-<VERSION_BEFORE_1.5.24> sudo dnf versionlock add sasl

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.

openpkg openpkg DOWNGRADE

Affected: 2.1 · 2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1 (Debian / Ubuntu)

apt-cache madison openpkg sudo apt install openpkg=<VERSION_BEFORE_2.1> sudo apt-mark hold openpkg

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

dnf --showduplicates list openpkg sudo dnf downgrade openpkg-<VERSION_BEFORE_2.1> 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.

suse suse cvsup DOWNGRADE

Affected: 16.1h_36.i586

Fixed in: no fixed release known

Safe to downgrade to: a release before 16.1h_36.i586

1. Check installed version

apt-cache policy suse-cvsup || rpm -q suse-cvsup || suse-cvsup --version

2. No fixed release: DOWNGRADE to a release before 16.1h_36.i586 (Debian / Ubuntu)

apt-cache madison suse-cvsup sudo apt install suse-cvsup=<VERSION_BEFORE_16.1h_36.i586> sudo apt-mark hold suse-cvsup

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

dnf --showduplicates list suse-cvsup sudo dnf downgrade suse-cvsup-<VERSION_BEFORE_16.1h_36.i586> sudo dnf versionlock add suse-cvsup

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.

conectiva linux MITIGATE

Affected: 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

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.

apple mac os x MITIGATE

Affected: 10.0 · 10.0.1 · 10.0.2 · 10.0.3 · 10.0.4 · 10.1 · 10.1.1 · 10.1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

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.

apple mac os x server MITIGATE

Affected: 10.0 · 10.1 · 10.1.1 · 10.1.2 · 10.1.3 · 10.1.4 · 10.1.5 · 10.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

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-2005-0373?

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

Is CVE-2005-0373 being exploited?

CVE-2005-0373 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-2005-0373 affect?

CVE-2005-0373 affects sasl, openpkg, suse cvsup. Severity is high (CVSS 7.5). Buffer overflow in digestmd5.c CVS release 1.170 (also referred to as digestmda5.c), as used in the DIGEST-MD5 SASL plugin for Cyrus-SASL but not in any official releases, allows remote attackers to execute arbitrary code.

How urgent is CVE-2005-0373?

Priority 54/100. High severity; EPSS top 10%: very likely to be exploited; On your watchlist

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References

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