EUVD-2025-17574
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Lifecycle Timeline
4Description
A vulnerability has been identified in the libarchive library. This flaw involves an 'off-by-one' miscalculation when handling prefixes and suffixes for file names. This can lead to a 1-byte write overflow. While seemingly small, such an overflow can corrupt adjacent memory, leading to unpredictable program behavior, crashes, or in specific circumstances, could be leveraged as a building block for more sophisticated exploitation. This bug affects libarchive versions prior to 3.8.0.
Analysis
A vulnerability has been identified in the libarchive library. This flaw involves an 'off-by-one' miscalculation when handling prefixes and suffixes for file names. This can lead to a 1-byte write overflow. While seemingly small, such an overflow can corrupt adjacent memory, leading to unpredictable program behavior, crashes, or in specific circumstances, could be leveraged as a building block for more sophisticated exploitation. This bug affects libarchive versions prior to 3.8.0.
Technical Context
An out-of-bounds memory access occurs when code reads from or writes to memory locations outside the intended buffer boundaries. This vulnerability is classified as Out-of-bounds Write (CWE-787).
Affected Products
Affected products: Libarchive Libarchive, Redhat Openshift Container Platform 4.0, Redhat Enterprise Linux 6.0
Remediation
A vendor patch is available — apply it immediately. Implement proper bounds checking on all array and buffer accesses. Use memory-safe languages or static analysis tools to detect OOB issues.
Priority Score
Vendor Status
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| trusty | needs-triage | - |
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| focal | needs-triage | - |
| upstream | needs-triage | - |
| jammy | released | 3.6.0-1ubuntu1.5 |
| noble | released | 3.7.2-2ubuntu0.5 |
| oracular | released | 3.7.4-1ubuntu0.3 |
| plucky | released | 3.7.7-0ubuntu2.3 |
| questing | released | 3.7.7-0ubuntu3 |
Debian
Bug #1107626| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | fixed | 3.4.3-2+deb11u3 | - |
| bullseye (security) | fixed | 3.4.3-2+deb11u3 | - |
| bookworm | fixed | 3.6.2-1+deb12u3 | - |
| bookworm (security) | vulnerable | 3.6.2-1+deb12u2 | - |
| trixie | fixed | 3.7.4-4 | - |
| forky, sid | fixed | 3.8.5-1 | - |
| (unstable) | fixed | 3.7.4-4 | - |
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External POC / Exploit Code
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