CVE & CISA-KEV Catalog

CVE-2020-13962

HIGHEPSS 86th pctl
7.5
CVSS v3
NVD

Description

Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mumble 1.3.0 and other products, mishandles OpenSSL's error queue, which can cause a denial of service to QSslSocket users. Because errors leak in unrelated TLS sessions, an unrelated session may be disconnected when any handshake fails. (Mumble 1.3.1 is not affected, regardless of the Qt version.)

How to fix

Remediation Available
qtbase-opensource-srcDebian
Fixed in:5.14.2+dfsg-6CVE-2020-13962
Fixed in:5.14.2+dfsg-6CVE-2020-13962
Fixed in:5.14.2+dfsg-6CVE-2020-13962
Fixed in:5.14.2+dfsg-6CVE-2020-13962
libqt5core5aUbuntu
Fixed in:5.5.1+dfsg-16ubuntu7.7+esm2USN-8076-1
Fixed in:5.9.5+dfsg-0ubuntu2.6+esm2USN-8076-1
Fixed in:5.12.8+dfsg-0ubuntu2.1+esm3USN-8076-1
Fixed in:5.15.3+dfsg-2ubuntu0.2+esm3USN-8076-1
libqt5core5t64Ubuntu
Fixed in:5.15.13+dfsg-1ubuntu1+esm1USN-8076-1
libqt5gui5Ubuntu
Fixed in:5.5.1+dfsg-16ubuntu7.7+esm2USN-8076-1
Fixed in:5.9.5+dfsg-0ubuntu2.6+esm2USN-8076-1
Fixed in:5.12.8+dfsg-0ubuntu2.1+esm3USN-8076-1
Fixed in:5.15.3+dfsg-2ubuntu0.2+esm3USN-8076-1
libqt5gui5t64Ubuntu
Fixed in:5.15.13+dfsg-1ubuntu1+esm1USN-8076-1
qtbase-opensource-srcUbuntu
Fixed in:5.5.1+dfsg-16ubuntu7.7+esm2USN-8076-1
Fixed in:5.9.5+dfsg-0ubuntu2.6+esm2USN-8076-1
Fixed in:5.12.8+dfsg-0ubuntu2.1+esm3USN-8076-1
Fixed in:5.15.3+dfsg-2ubuntu0.2+esm3USN-8076-1
Fixed in:5.15.13+dfsg-1ubuntu1+esm1USN-8076-1

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 VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

3.01%probability of exploitation in 30 days
86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Vendor Advisory1
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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.