Use After Free in Linux Kernel
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.
Vulnerability class: Use-After-Free
EPSS: 0.020 (78.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@android.com (x_refsource_CONFIRM, Release Notes)
- security@android.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@android.com (x_refsource_CONFIRM, Third Party Advisory)
- security@android.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2015-8961?
- CVE-2015-8961 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2016-11-16.
- How severe is CVE-2015-8961?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2015-8961 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.