Upstream information
Description
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header._read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value.
A crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size.
SUSE information
Overall state of this security issue: Revisit
This issue is currently rated as having important severity.
| CVSS detail | CNA (CISA-ADP) | National Vulnerability Database |
|---|---|---|
| Base Score | 7.5 | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | High | None |
| Availability Impact | None | High |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- RHSA-2026:48225, published Fri Jul 31 15:06:56 UTC 2026
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Liberty Linux 8 |
| Patchnames: RHSA-2026:48225 |
SUSE Timeline for this CVE
CVE page created: Thu Jul 30 19:30:22 2026CVE page last modified: Fri Jul 31 20:28:18 2026