CVE-2015-5675
FreeBSD Security Advisory - IRET Handler Privilege Escalation
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The sys_amd64 IRET Handler in the kernel in FreeBSD 9.3 and 10.1 allows local users to gain privileges or cause a denial of service (kernel panic).
El manipulador IRET sys_amd64 en el kernel en FreeBSD 9.3 y 10.1 permite que usuarios locales obtengan privilegios o provoquen una denegación de servicio (pánico del kernel).
If the kernel-mode IRET instruction generates an #SS or #NP exception, but the exception handler does not properly ensure that the right GS register base for kernel is reloaded, the userland GS segment may be used in the context of the kernel exception handler. By causing an IRET with #SS or #NP exceptions, a local attacker can cause the kernel to use an arbitrary GS base, which may allow escalated privileges or panic the system.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2015-07-26 CVE Reserved
- 2015-08-26 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/133335/FreeBSD-Security-Advisory-IRET-Handler-Privilege-Escalation.html | Third Party Advisory |
|
| http://www.securityfocus.com/archive/1/536321/100/0/threaded | Mailing List | |
| http://www.securityfocus.com/bid/76485 | Third Party Advisory | |
| http://www.securitytracker.com/id/1033376 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.freebsd.org/security/advisories/FreeBSD-SA-15:21.amd64.asc | 2018-10-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 9.3 Search vendor "Freebsd" for product "Freebsd" and version "9.3" | - |
Affected
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 10.1 Search vendor "Freebsd" for product "Freebsd" and version "10.1" | - |
Affected
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