In Ubuntu's accountsservice an unprivileged local attacker can trigger a use-after-free vulnerability in accountsservice by sending a D-Bus message to the accounts-daemon process.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://ubuntu.com/security/notices/USN-6190-1 | vendor advisory |
| https://securitylab.github.com/advisories/GHSL-2023-139_accountsservice/ | third party advisory exploit technical description |
| https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/2024182 | vendor advisory issue tracking exploit |
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3297 | third party advisory issue tracking |