CVE-2021-3939
High
Description
Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.
SeverityHigh
CVSS7.8
Exploit probability—
ProductCanonical Accountsservice
PublishedNov 17, 2021
First seenNov 17, 2021
Weakness typeCWE-590CWE-590
How to fix
Update
- canonical accountsservice0.6.55-0ubuntu12\~20.05, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| canonical accountsservice | 0.6.55-0ubuntu12\~20.04 ≤ v < 0.6.55-0ubuntu12\~20.05, 0.6.55-0ubuntu13 ≤ v < 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14 ≤ v < 0.6.55-0ubuntu14.1 | 0.6.55-0ubuntu12\~20.05, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1 |
| canonical ubuntu_linux | 20.04, 21.04, 21.10 | — |
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