7.5

CVE-2020-13962: fedoraproject fedora

CVSS: 7.5v3.1HighModified
AliasesMGASA-2021-0200SUSE-SU-2020:2357-1UBUNTU-CVE-2020-13962
Published 08-06-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-13962 is a high (CVSS 7.5) vulnerability in fedoraproject fedora. EPSS estimates a 2.99% chance of exploitation in the next 30 days, higher than 87.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.99%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
RHSA-2020:4690USN-8076-1

Timeline

  1. 08-06-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.)

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.99%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.99% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.99%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Mumble

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Opensuse3 products
  • leapEOL15.2
  • libqt5-qtbase&distro=openSUSE Leap 15.2< 5.12.7-lp152.3.3.1
  • libqt5-qtbase&distro=openSUSE Tumbleweed< 5.15.2+kde268-2.1
Suse2 products
  • libqt5-qtbase&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 5.12.7-4.3.1
  • libqt5-qtbase&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP2< 5.12.7-4.3.1
Debian1 product
  • qtbase-opensource-src< 5.14.2+dfsg-6
Fedoraproject1 product
Mageia1 product
  • qtbase5< 5.12.6-4.2.mga7
Mumble1 product
Qt1 product
  • qt≥ 5.12.2, < 5.12.9 | ≥ 5.13.0, ≤ 5.13.2 | ≥ 5.14.0, ≤ 5.14.2
Ubuntu1 product
  • qtbase-opensource-src< 5.12.8+dfsg-0ubuntu2.1+esm3

8 vendors · 11 products

References

22 links
Show all 22 references