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Fencer Intel
medium 5.5

CVE-2020-11937 json

Resource exhaustion vulnerability in whoopsie

published 6y ago modified 4mo ago also EUVD-2020-4274

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

In whoopsie, parse_report() from whoopsie.c allows a local attacker to cause a denial of service via a crafted file. The DoS is caused by resource exhaustion due to a memory leak. Fixed in 0.2.52.5ubuntu0.5, 0.2.62ubuntu0.5 and 0.2.69ubuntu0.1.

Patch / fix

  • Canonical whoopsie 0.2.52.5ubuntu0.5, 0.2.62ubuntu0.5, 0.2.69ubuntu0.1
  • whoopsie Ubuntu 16.04 LTS 0.2.52.5ubuntu0.5
  • whoopsie Ubuntu 18.04 LTS 0.2.62ubuntu0.5
  • whoopsie Ubuntu 20.04 LTS 0.2.69ubuntu0.1

ubuntu advisories UBUNTU-CVE-2020-11937

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • launchpad.net https://launchpad.net/bugs/1881982 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/sungjungk/whoopsie_killer referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Canonical whoopsie

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.