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Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package libnghttp2_asio1-32bit  (opens in a new tab)

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EPSS
59.55% (100th percentile)

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  • Snyk IDSNYK-SLES151-LIBNGHTTP2ASIO132BIT-2731831
  • published14 Apr 2022
  • disclosed26 Sept 2019
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Introduced: 26 Sep 2019

CVE-2019-9511  (opens in a new tab)
CWE-770  (opens in a new tab)

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libnghttp2_asio1-32bit package and not the libnghttp2_asio1-32bit package as distributed by SLES.

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

References