CVE-2019-3994

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-12-17 · updated 2026-06-17
Weakness: CWE-416

Description

ELOG 3.1.4-57bea22 and below is affected by a denial of service vulnerability due to a use after free. A remote unauthenticated attacker can crash the ELOG server by sending multiple HTTP POST requests which causes the ELOG function retrieve_url() to use a freed variable.

Affected products

ELOG: through 3.1.4-57bea22
Fedoraproject Fedora: 30, 31

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2IN3FP6VXYSD4OMUCFZNOL7MKPWRQFAL/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4IAS4HI24H2ERKBZTDEVJ3LEQEFWYSCT/
https://www.tenable.com/security/research/tra-2019-53
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2IN3FP6VXYSD4OMUCFZNOL7MKPWRQFAL/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4IAS4HI24H2ERKBZTDEVJ3LEQEFWYSCT/
https://www.tenable.com/security/research/tra-2019-53

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