CVE-2021-33643
Critical
Description
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.
SeverityCritical
CVSS9.1
Exploit probability—
Product
Feep Libtar
PublishedAug 10, 2022
First seenAug 10, 2022
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- feep libtar1.2.21 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD4HEBSTI22FNYKOKK7W3X6ZQE6FV3XC/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| feep libtar | v < 1.2.21 | 1.2.21 |
| openatom openeuler | 20.03, 22.03 | — |
| fedoraproject fedora | 35, 36, 37 | — |
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