CVE-2017-2636: Race Condition
First published: Thu Mar 02 2017(Updated: )
A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.31<3.2.87 | |
| Linux Linux kernel | >=3.3<3.10.106 | |
| Linux Linux kernel | >=3.11<3.12.72 | |
| Linux Linux kernel | >=3.13<3.16.42 | |
| Linux Linux kernel | >=3.17<3.18.49 | |
| Linux Linux kernel | >=3.19<4.1.49 | |
| Linux Linux kernel | >=4.2<4.4.54 | |
| Linux Linux kernel | >=4.5<4.9.15 | |
| Linux Linux kernel | >=4.10<4.10.3 | |
| Debian Debian Linux | =8.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://www.debian.org/security/2017/dsa-3804
- http://www.openwall.com/lists/oss-security/2017/03/07/6
- http://www.securityfocus.com/bid/96732
- http://www.securitytracker.com/id/1037963
- https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html
- https://access.redhat.com/errata/RHSA-2017:0892
- https://access.redhat.com/errata/RHSA-2017:0931
- https://access.redhat.com/errata/RHSA-2017:0932
- https://access.redhat.com/errata/RHSA-2017:0933
- https://access.redhat.com/errata/RHSA-2017:0986
- https://access.redhat.com/errata/RHSA-2017:1125
- https://access.redhat.com/errata/RHSA-2017:1126
- https://access.redhat.com/errata/RHSA-2017:1232
- https://access.redhat.com/errata/RHSA-2017:1233
- https://access.redhat.com/errata/RHSA-2017:1488
- https://bugzilla.redhat.com/show_bug.cgi?id=1428319
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- agent/remedy
- agent/last-modified-date
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-2636
- agent/weakness
- agent/references
- agent/severity
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.31
- version/linux linux kernel/3.3
- version/linux linux kernel/3.11
- version/linux linux kernel/3.13
- version/linux linux kernel/3.17
- version/linux linux kernel/3.19
- version/linux linux kernel/4.2
- version/linux linux kernel/4.5
- version/linux linux kernel/4.10
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0