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CVE-2021-32556: It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
CVE-2021-32556 · published 5 years ago
Summary
It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| canonical | apport |
>= 2.14.1-0ubuntu3, < 2.14.1-0ubuntu3.29\+esm7 >= 2.20.1, < 2.20.1-0ubuntu2.30\+esm1 >= 2.20.9, < 2.20.9-0ubuntu7.24 >= 2.20.11-0ubuntu27, < 2.20.11-0ubuntu27.18 >= 2.20.11-0ubuntu50, < 2.20.11-0ubuntu50.7 >= 2.20.11-0ubuntu65, < 2.20.11-0ubuntu65.1 cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:* |
Original advisory text
It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
References
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904 Vendor Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-78OS Command Injection
Timeline
Published12 Jun 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-32556 · NVD
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