CVE-2009-0047: Gale 0.99 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, whic

Q: How do I fix CVE-2009-0047?

gale: upgrade to newer than 0.99. Exact commands for each OS are on this page.

Q: Is CVE-2009-0047 being exploited?

CVE-2009-0047 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2009-0047 affect?

CVE-2009-0047 affects gale. Severity is medium (CVSS 5.0). Gale 0.99 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys,

Q: How urgent is CVE-2009-0047?

Priority 39/100. On your watchlist

Routine

MEDIUM 5.0WATCHLISTUPGRADE

CVE-2009-0047 is a medium-severity flaw (CVSS 5.0) affecting gale. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gale 0.99 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-287, CWE-310
Published	2009-01-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: gale

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

Am I affected?

Timeline

2009-01-07 18:30 UTCPublished CVE record published
2026-06-16 23:04 UTCUpdated Record last modified

gale gale UPGRADE

Affected: <= 0.99 · 0.15 · 0.15b · 0.15c · 0.16 · 0.16a · 0.17 · 0.17a

Fixed in: newer than 0.99

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.99 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gale

Note

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

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-2009-0047?

gale: upgrade to newer than 0.99. Exact commands for each OS are on this page.

Is CVE-2009-0047 being exploited?

CVE-2009-0047 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-2009-0047 affect?

CVE-2009-0047 affects gale. Severity is medium (CVSS 5.0). Gale 0.99 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys,

How urgent is CVE-2009-0047?

Priority 39/100. On your watchlist

Software pages

OpenSSL vulnerabilities

References

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