CVE-2020-28928
Published: August 31, 2023Last modified: August 31, 2023
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).
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | musl-default | Not affected (1.2.4-r1) |
| musl-perf | Not affected (1.2.4-r1) | ||
| Stream | musl-default | Not affected (1.2.4_git20230717-r0) | |
| musl-perf | Not affected (1.2.4_git20230717-r0) |
References
- http://www.openwall.com/lists/oss-security/2020/11/20/4
- https://lists.apache.org/thread.html/r2134abfe847bea7795f0e53756d10a47e6643f35ab8169df8b8a9eb1%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r2134abfe847bea7795f0e53756d10a47e6643f35ab8169df8b8a9eb1@%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r90b60cf49348e515257b4950900c1bd3ab95a960cf2469d919c7264e%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r90b60cf49348e515257b4950900c1bd3ab95a960cf2469d919c7264e@%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/ra63e8dc5137d952afc55dbbfa63be83304ecf842d1eab1ff3ebb29e2%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/ra63e8dc5137d952afc55dbbfa63be83304ecf842d1eab1ff3ebb29e2@%3Cnotifications.apisix.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/11/msg00050.html
- 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://lists.fedoraproject.org/archives/list/[email protected]/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ/
- https://musl.libc.org/releases.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html