Out-of-bounds Read Affecting kernel-rt-kvm package, versions <0:3.10.0-693.5.2.rt56.626.el7
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-KERNELRTKVM-2093622
- published26 Jul 2021
- disclosed23 Aug 2017
Introduced: 23 Aug 2017
CVE-2017-7558 (opens in a new tab)How to fix?
Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-693.5.2.rt56.626.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.
References
- http://www.securityfocus.com/bid/100466
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558
- https://access.redhat.com/security/cve/CVE-2017-7558
- https://www.debian.org/security/2017/dsa-3981
- http://seclists.org/oss-sec/2017/q3/338
- https://marc.info/?l=linux-netdev&m=150348777122761&w=2
- https://access.redhat.com/errata/RHSA-2017:2931
- http://www.securitytracker.com/id/1039221
- https://bugzilla.redhat.com/show_bug.cgi?id=1480266
- https://www.exploit-db.com/exploits/45919