CVE-2021-32610

HIGHEPSS 99th pctl

7.1

CVSS v3

Description

In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.

CWE-59Link Following

How to fix

Remediation Available

php-pearDebian

Fixed in:1:1.10.13+submodules+notgz-1CVE-2021-32610

php-pearUbuntu

Fixed in:1:1.10.1+submodules+notgz-6ubuntu0.3+esm1USN-5027-2

Fixed in:1:1.10.5+submodules+notgz-1ubuntu1.18.04.4USN-5027-1

Fixed in:1:1.10.9+submodules+notgz-1ubuntu0.20.04.3USN-5027-1

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

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

73.38%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch2

Third-Party Advisory3

Other references4

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-30333	High	7.5	99%	KEV + Ransom	Fix
CVE-2021-21300	High	8.0	89%	-	Fix
CVE-2020-36193	High	7.5	71%	KEV	Fix
CVE-2023-40028	Medium	4.9	58%	-	Fix
CVE-2023-36874	High	7.8	43%	KEV	Fix
CVE-2020-0787	High	7.8	43%	KEV + Ransom	-

Common questions

How do I fix CVE-2021-32610?

Published advisories record a fix for 2 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-2021-32610 being actively exploited?

Not that we know of. CVE-2021-32610 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 73.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2021-32610?

CVE-2021-32610 has a CVSS v3 base score of 7.1, rated high. 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-2021-32610 affect?

Published advisories record a fix for php-pear (Debian), php-pear (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.