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Fencer Vulns
medium 5.5

CVE-2020-15709 json

add-apt-repository print ASNI terminal codes

published 2020-09-05 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7695

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

Versions of add-apt-repository before 0.98.9.2, 0.96.24.32.14, 0.96.20.10, and 0.92.37.8ubuntu0.1~esm1, printed a PPA (personal package archive) description to the terminal as-is, which allowed PPA owners to provide ANSI terminal escapes to modify terminal contents in unexpected ways.

Patch / fix

  • Canonical add-apt-repository 0.92.37.8ubuntu0.1~esm1, 0.96.20.10, 0.96.24.32.14, 0.98.9.2
  • software-properties Ubuntu 16.04 LTS 0.96.20.10
  • software-properties Ubuntu 18.04 LTS 0.96.24.32.14
  • software-properties Ubuntu 20.04 LTS 0.98.9.2
  • software-properties Ubuntu Pro 14.04 LTS 0.92.37.8ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-15709

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Canonical add-apt-repository

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.