Bug 1635888 (CVE-2018-17828)
| Summary: | CVE-2018-17828 zziplib: directory traversal in unzzip_cat in the bins/unzzipcat-mem.c | ||
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| Product: | [Other] Security Response | Reporter: | Laura Pardo <lpardo> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abokovoy, jamartis |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
It was discovered that zziplib is vulnerable to a directory traversal flaw in most of its unzip binaries, including unzip-mem, unzzipcat-mem, unzzipcat-big, unzzipcat-mix, and unzzipcat-zip. An attacker may use this flaw to write files outside the intended target directory, overwriting existing files, or creating new ones.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-03-31 22:33:22 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1635889, 1635890, 1641635, 1772447, 1986843 | ||
| Bug Blocks: | 1635891 | ||
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Description
Laura Pardo
2018-10-03 20:36:19 UTC
Created zziplib tracking bugs for this issue: Affects: fedora-all [bug 1635889] The same flaw is present in unzzipcat-big.c, unzzipcat-mix.c and unzzipcat-zip.c. The same problem is also present in unzip-mem.c. Proposed patch for unzip-mem.c: https://github.com/gdraheim/zziplib/files/2482517/patch.txt This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:1178 https://access.redhat.com/errata/RHSA-2020:1178 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2018-17828 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:1653 https://access.redhat.com/errata/RHSA-2020:1653 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:20478 https://access.redhat.com/errata/RHSA-2025:20478 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:20838 https://access.redhat.com/errata/RHSA-2025:20838 |