Numeric Errors Affecting apr-util package, versions <1.3.7+dfsg-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
12.04% (96th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-APRUTIL-18578941
  • published7 Aug 2026
  • disclosed8 Jun 2009

Introduced: 8 Jun 2009

CVE-2009-1956  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade Echo:latest apr-util to version 1.3.7+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apr-util package and not the apr-util package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.

References

CVSS Base Scores

version 3.1