CVE-2023-33551
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.81% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 56.6% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-06-01 00:00Z3 YR AGO
- Last updated
- 2025-01-09 18:12Z1 YR AGO
- Reserved
- 2023-05-22
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.1
- Document digest
- 55d890e13f29e51539870d08c4240b19761f5af465ebb00bb50d052b856e4da6
05 Affected products
06 References
- github.comhttps://github.com/lometsj/blog_repo/issues/2
- lists.fedoraproject.orgFEDORA-2023-f838326992https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHOIRL6XH5NYR3LYI3KP5DE4SDSQWR7W/
- lists.fedoraproject.orgFEDORA-2023-aadd651a30https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGGIYW7PHYQM2NPYCJPSPSLULLD2P2PE/
07 Fixed in
Debian 12
- erofs-utils No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- erofs-utils Fixed in 1.6-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- erofs-utils Fixed in 1.6-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- erofs-utils No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.