CVE & CISA-KEV Catalog

CVE-2021-3800

MEDIUM

5.5

CVSS v3

Description

A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from files owned by privileged users to unprivileged ones under the right condition.

CWE-200Information Exposure CWE-552

How to fix

Remediation Available

glib2.0Debian

Fixed in:2.64.0-1CVE-2021-3800

Fixed in:2.64.0-1CVE-2021-3800

Fixed in:2.64.0-1CVE-2021-3800

Fixed in:2.64.0-1CVE-2021-3800

glib2.0Ubuntu

Fixed in:2.40.2-0ubuntu1.1+esm4USN-5189-1

Fixed in:2.48.2-0ubuntu4.8+esm1USN-5189-1

Fixed in:2.56.4-0ubuntu0.18.04.9USN-5189-1

libglib2.0-0Ubuntu

Fixed in:2.40.2-0ubuntu1.1+esm4USN-5189-1

Fixed in:2.48.2-0ubuntu4.8+esm1USN-5189-1

Fixed in:2.56.4-0ubuntu0.18.04.9USN-5189-1

libglib2.0-binUbuntu

Fixed in:2.40.2-0ubuntu1.1+esm4USN-5189-1

Fixed in:2.48.2-0ubuntu4.8+esm1USN-5189-1

Fixed in:2.56.4-0ubuntu0.18.04.9USN-5189-1

libglib2.0-dataUbuntu

Fixed in:2.40.2-0ubuntu1.1+esm4USN-5189-1

Fixed in:2.48.2-0ubuntu4.8+esm1USN-5189-1

Fixed in:2.56.4-0ubuntu0.18.04.9USN-5189-1

libglib2.0-devUbuntu

Fixed in:2.40.2-0ubuntu1.1+esm4USN-5189-1

Fixed in:2.48.2-0ubuntu4.8+esm1USN-5189-1

Fixed in:2.56.4-0ubuntu0.18.04.9USN-5189-1

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.53%probability of exploitation in 30 days

41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Patch3

Third-Party Advisory3

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

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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.