CVE-2020-28928
MEDIUM
5.5
CVSS Score
Published: November 24, 2020 at 06:01 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraGraalVM
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.7%
Description
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).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v ≤ 1.2.1
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ/
- https://musl.libc.org/releases.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
References (10)
x_refsource_CONFIRMMailing ListThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/11/20/4Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/11/msg00050.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ/x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://musl.libc.org/releases.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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