Vulnerability · Published Jun 1, 2023 · Assigned by mitre
CVE-2023-33551
High 7.8
In plain English
A high-severity out-of-bounds write in the erofs-utils package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Heap Buffer Overflow in the erofsfsck_dirent_iter function in fsck/main.c in erofs-utils v1.6 allows remote attackers to execute arbitrary code via a crafted erofs filesystem image.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | erofs-utils | no fix listed | DEBIAN-CVE-2023-33551 |
| Debian:13 | erofs-utils | 1.6-2 | DEBIAN-CVE-2023-33551 |
| Debian:14 | erofs-utils | 1.6-2 | DEBIAN-CVE-2023-33551 |
| Ubuntu:22.04:LTS | erofs-utils | no fix listed | UBUNTU-CVE-2023-33551 |
| Ubuntu:24.04:LTS | erofs-utils | no fix listed | UBUNTU-CVE-2023-33551 |
| Ubuntu:25.10 | erofs-utils | no fix listed | UBUNTU-CVE-2023-33551 |
| Ubuntu:26.04:LTS | erofs-utils | no fix listed | UBUNTU-CVE-2023-33551 |
| Ubuntu:26.10 | erofs-utils | no fix listed | UBUNTU-CVE-2023-33551 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/lometsj/blog_repo/issues/2
- FEDORA-2023-f838326992 vendor-advisory
- FEDORA-2023-aadd651a30 vendor-advisory