Buffer overflow in Musl-Libc Musl
CVE-2020-28928
In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).
Vulnerability class: Buffer Overflow
EPSS: 0.006 (47.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Musl-libc Musl
- Oracle Graalvm — versions 20.3.2, 21.1.0
- Debian Debian_linux — versions 9.0
- Fedoraproject Fedora — versions 33, 34
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- Anna-Rafaella/Conteneurisation
- ChrisAdkin8/Nomad-Job-Vulnerability-Tagging
- SilveiraLeonardo/experimenting_
- arindam0310018/04-Apr-2022-DevOps__
- chaimleib/maclfs
- developer-guy/image-scanning-using-trivy-as-go-library
- fivexl/aws-ecr-client-golang
- fredrkl/trivy-demo
- henrymrrtt67/Sample.WeatherForecast
References
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-28928?
- CVE-2020-28928 is a medium-severity vulnerability in Musl-Libc Musl, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2020-11-24.
- How severe is CVE-2020-28928?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-28928 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.