CVE & CISA-KEV Catalog

CVE-2021-32557

MEDIUM
5.2
CVSS v3
NVD

Description

It was discovered that the process_report() function in data/whoopsie-upload-all allowed arbitrary file writes via symlinks.

CWE-59Link FollowingCWE-61

How to fix

Remediation Available
apportUbuntu
Fixed in:2.14.1-0ubuntu3.29+esm7USN-4965-2
Fixed in:2.20.1-0ubuntu2.30+esm1USN-4965-2
Fixed in:2.20.9-0ubuntu7.24USN-4965-1
Fixed in:2.20.11-0ubuntu27.18USN-4965-1
python-apportUbuntu
Fixed in:2.14.1-0ubuntu3.29+esm7USN-4965-2
Fixed in:2.20.1-0ubuntu2.30+esm1USN-4965-2
Fixed in:2.20.9-0ubuntu7.24USN-4965-1
python3-apportUbuntu
Fixed in:2.14.1-0ubuntu3.29+esm7USN-4965-2
Fixed in:2.20.1-0ubuntu2.30+esm1USN-4965-2
Fixed in:2.20.9-0ubuntu7.24USN-4965-1
Fixed in:2.20.11-0ubuntu27.18USN-4965-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityLow

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Exploit Intelligence

0.39%probability of exploitation in 30 days
32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Related Vulnerabilities

Other CWE-59 (Link Following) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-30333High7.599%KEV + RansomFix
CVE-2021-21300High8.089%-Fix
CVE-2021-32610High7.173%-Fix
CVE-2020-36193High7.571%KEVFix
CVE-2023-40028Medium4.958%-Fix
CVE-2023-36874High7.843%KEVFix

Common questions

How do I fix CVE-2021-32557?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2021-32557 being actively exploited?

Not that we know of. CVE-2021-32557 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.39% is the estimated probability that it will be exploited in the next 30 days. That is higher than 32% of all scored CVEs.

How severe is CVE-2021-32557?

CVE-2021-32557 has a CVSS v3 base score of 5.2, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-32557 affect?

Published advisories record a fix for apport (Ubuntu), python-apport (Ubuntu), python3-apport (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.