CVE-2019-11484: Kevin Backhouse discovered an integer overflow in bson_ensure_space, as used in whoopsie.

Routine

MEDIUM 6.3WATCHLISTMITIGATEMITIGATE

CVE-2019-11484 is a medium-severity flaw (CVSS 6.3) affecting whoopsie, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kevin Backhouse discovered an integer overflow in bson_ensure_space, as used in whoopsie.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-190
Published	2020-02-08
Last modified	2026-06-17

Publisher (CNA): Canonical Ltd. · Vendor: canonical · whoopsie project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-08 05:15 UTCPublished CVE record published
2026-06-17 02:12 UTCUpdated Record last modified

whoopsie project whoopsie MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy whoopsie || rpm -q whoopsie || whoopsie --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

canonical ubuntu linux MITIGATE

Affected: 16.04 · 18.04 · 19.04 · 19.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 16.04

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-11484?

whoopsie: mitigate or apply the listed mitigation; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-11484 being exploited?

CVE-2019-11484 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-11484 affect?

CVE-2019-11484 affects whoopsie, ubuntu linux. Severity is medium (CVSS 6.3). Kevin Backhouse discovered an integer overflow in bson_ensure_space, as used in whoopsie.

How urgent is CVE-2019-11484?

Priority 37/100. On your watchlist

Software pages

Ubuntu vulnerabilities

Related CVEs

CVE-2020-15570 MEDIUM 5.5 UPGRADE The parse_report() function in whoopsie.c in Whoopsie through 0.2.69 mishandles memory allocation failures, wh
CVE-2020-12135 MEDIUM 5.5 UPGRADE UPGRADE bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values
CVE-2020-11937 MEDIUM 5.5 DOWNGRADE In whoopsie, parse_report() from whoopsie.c allows a local attacker to cause a denial of service via a crafted

References

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