Missing Release of Memory after Effective Lifetime Affecting oisf/libhtp package, versions [,0.5.51)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Jul 2025
- disclosed23 Jul 2025
- creditUnknown
Introduced: 23 Jul 2025
CVE-2025-53537 (opens in a new tab)How to fix?
Upgrade oisf/libhtp to version 0.5.51 or higher.
Overview
Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime via the lzma process. An attacker can exhaust system memory by sending specially crafted traffic, potentially causing service disruption.
Workaround
This vulnerability can be mitigated by setting suricata.yaml app-layer.protocols.http.libhtp.default-config.lzma-enabled to false.