Buffer overflow in the png_read_IDAT_data function in pngrutil.c in libpng before 1.5.21 and 1.6.x before 1.6.16 allows context-dependent attackers to execute arbitrary code via IDAT data with a large width, a different vulnerability than CVE-2014-9495.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-0973 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable. This issue does not affect the version of libpng as shipped with Red Hat Enterprise Linux 5, 6 and 7. For a more detailed explanation please refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1177327#c1
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 6.8 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | libpng | Not affected |
| Red Hat Enterprise Linux 6 | libpng | Not affected |
| Red Hat Enterprise Linux 5 | libpng | Not affected |
Vulmon