Integer overflow in Linux Kernel
CVE-2017-7482
In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- [Unknown] Kernel: — versions 4.12
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Mrg — versions 2.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/99299 (VDB Entry, Third Party Advisory, vdb-entry)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- www.securitytracker.com/id/1038787 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-3927 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2017/dsa-3945 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- seclists.org/oss-sec/2017/q2/602 (mailing-list, Patch, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0641 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-7482?
- CVE-2017-7482 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-07-30.
- How severe is CVE-2017-7482?
- High severity. CVSS v3 base score is 7.8 out of 10.