CVE-2015-8961

HIGHCVSS 7.8/10EPSS 2.00%

Last modified

CVE-2015-8961 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.

Description

The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
2.00%

78.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.10.85, < 3.12
LinuxLinux Kernel>= 3.12.46, < 3.12.52
LinuxLinux Kernel>= 3.14.49, < 3.14.59
LinuxLinux Kernel>= 3.18.20, < 3.18.54
LinuxLinux Kernel>= 4.1.4, < 4.1.15
LinuxLinux Kernel>= 4.2, < 4.2.8
LinuxLinux Kernel>= 4.3, < 4.3.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-8961?
The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field.
How severe is CVE-2015-8961?
CVE-2015-8961 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 2.00% probability of exploitation in the next 30 days.
How do I fix CVE-2015-8961?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8961?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST