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Allocation of Resources Without Limits or Throttling Affecting trafficserver package, versions <8.0.5+ds-1

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    4.88% (94th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-TRAFFICSERVER-459597
  • published 13 Aug 2019
  • disclosed 13 Aug 2019
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Introduced: 13 Aug 2019

CVE-2019-9515 Open this link in a new tab
CWE-770 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade Debian:unstable trafficserver to version 8.0.5+ds-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream trafficserver package and not the trafficserver package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

References

CVSS Scores

version 3.1
Expand this section

NVD

Recommended
7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

SUSE

7.5 high