CVE-2015-8776
Public on
Last Modified:
Description
It was found that out-of-range time values passed to the strftime() function could result in an out-of-bounds memory access. This could lead to application crash or, potentially, information disclosure.
Mitigation
Check time values before they are passed to strftime, or call strftime only with struct tm values computed by gmtime or localtime.
Additional information
- Bugzilla 1300299: glibc: Segmentation fault caused by passing out-of-range data to strftime()
- FAQ: Frequently asked questions about CVE-2015-8776
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
| Red Hat | NVD | |
|---|---|---|
CVSS v3 Base Score | 6.5 | 9.1 |
Attack Vector | Network | Network |
Attack Complexity | High | Low |
Privileges Required | None | None |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | Low | High |
Integrity Impact | None | None |
Availability Impact | High | High |
CVSS v3 Vector
Red Hat: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
| Red Hat | NVD | |
|---|---|---|
CVSS v2 Base Score | 4 | 6.4 |
Attack Vector | Network | Network |
Access Complexity | High | Low |
Authentication | None | None |
Confidentiality Impact | Partial | Partial |
Integrity Impact | None | None |
Availability Impact | Partial | Partial |
CVSS v2 Vector
Red Hat: AV:N/AC:H/Au:N/C:P/I:N/A:P
NVD: AV:N/AC:L/Au:N/C:P/I:N/A:P
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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