VulnerabilityModified
CVE-2017-7482
This could possibly lead to memory corruption and possible privilege escalation.
HIGH 7.8EPSS 0.47%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.47% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- linux/linux kernel · debian/debian linux · redhat/enterprise mrg
- Source
- secalert@redhat.com
References
- http://seclists.org/oss-sec/2017/q2/602Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99299Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038787Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0641Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0Patch, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3927Third Party Advisory
- https://www.debian.org/security/2017/dsa-3945Third Party Advisory
- http://seclists.org/oss-sec/2017/q2/602Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99299Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038787Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0641Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0Patch, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3927Third Party Advisory
- https://www.debian.org/security/2017/dsa-3945Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.