Integer Underflow (Wrap or Wraparound) Affecting libsoup package, versions [0,]
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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- published26 May 2025
- disclosed19 May 2025
- creditUnknown
Introduced: 19 May 2025
NewCVE-2025-4948 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) due to an integer underflow in the soup_multipart_new_from_message function. An attacker can cause the application to access invalid memory and crash by sending specially crafted multipart messages.
Workaround
This vulnerability can be mitigated by avoiding the use of libsoup with untrusted or unauthenticated multipart HTTP message sources until updated packages are available. Administrators can deploy application-level filters or HTTP proxies that reject malformed multipart requests. It is strongly advised to apply vendor-supplied patches as soon as they are released to address this integer underflow vulnerability and restore the stability of affected services.