Privilege escalation in Canonical Ltd. Apport
CVE-2023-1326
A privilege escalation attack was found in apport-cli 2.26.0 and earlier which is similar to CVE-2023-26604. If a system is specially configured to allow unprivileged users to run sudo apport-cli, less is configured as the pager, and the terminal size can be set: a local attacker can escalate privilege. It is extremely unlikely that a system administrator would configure sudo to allow unprivileged users to perform this class of exploit.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Canonical Ltd. Apport — versions 0
- Canonical Apport
- Canonical Ubuntu Linux — versions 18.04, 20.04, 22.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/canonical/apport/commit/e5f78cc89f1f5888b6a56b785dddcb0364c48ecb (Patch, patch)
- ubuntu.com/security/notices/USN-6018-1 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-1326?
- CVE-2023-1326 is a high-severity vulnerability in Canonical Ltd. Apport, classified under Improper Privilege Management. CVSS score: 7.7/10. Published 2023-04-13.
- How severe is CVE-2023-1326?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2023-1326 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.