AZL-104901
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-104901.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-104901
- Upstream
- CVE-2026-6103
- Published
- 2026-09-25T21:17:23Z
- Modified
- 2026-09-28T05:39:54Z
- Summary
- CVE-2026-6103 affecting package php 8.3.33-1
- Details
-
phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.
- References