The trad_enc_decrypt_update function in archive_read_support_format_zip.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (out-of-bounds heap read and crash) via a crafted zip file, related to reading the password.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-8927 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 3.5 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:S/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | libarchive | Not affected |
| Red Hat Enterprise Linux 6 | libarchive | Not affected |
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