CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.2 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in Linux Kernel 3.11-4.0 (Operating System). Affected is the function path_openat
. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 08/01/2015 by Al Viro as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2015-5706 since 08/02/2015. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The reason for this vulnerability is this part of code:
goto out;
The vulnerability scanner Nessus provides a plugin with the ID 85281 (Debian DSA-3329-1 : linux - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175492 (Debian Security Update for linux (DSA 3329-1)).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 6 days after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:
goto out2;
The vulnerability is also documented in the databases at X-Force (105236) and Tenable (85281). The entries 76062, 76352, 76831 and 76848 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
ATT&CK: Unknown
Local: Yes
Remote: No
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 85281
Nessus Name: Debian DSA-3329-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703329
OpenVAS Name: Debian Security Advisory DSA 3329-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.kernel.org
Timeline
07/09/2015 🔍08/01/2015 🔍
08/01/2015 🔍
08/02/2015 🔍
08/03/2015 🔍
08/07/2015 🔍
08/10/2015 🔍
08/31/2015 🔍
12/30/2015 🔍
06/07/2022 🔍
Sources
Vendor: kernel.orgAdvisory: USN-2680-1
Researcher: Al Viro
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-5706 (🔍)
OVAL: 🔍
X-Force: 105236 - Linux Kernel path_openat() code execution
Vulnerability Center: 55459 - Linux kernel Local DoS and Other Unspecified Impact via O_TMPFILE Filesystem Operations, Medium
SecurityFocus: 76142 - Linux Kernel 'path_openat()' Function Use After Free Memory Corruption Vulnerability
See also: 🔍
Entry
Created: 08/03/2015 13:20Updated: 06/07/2022 09:47
Changes: 08/03/2015 13:20 (72), 09/21/2018 10:22 (13), 06/07/2022 09:47 (4)
Complete: 🔍
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