CVE-2020-25712: Buffer Overflow
First published: Mon Oct 12 2020(Updated: )
X.Org xserver is vulnerable to a heap-based buffer overflow, caused by insufficient checks on input of the XkbSetDeviceInfo request. By sending a specially-crafted request, a remote attacker could overflow a buffer and execute arbitrary code on the system.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/xorg-x11-server | <1.20.10 | 1.20.10 |
| IBM Cloud Pak for Security (CP4S) | <=1.7.2.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.1.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.0.0 | |
| X.Org X Server | <1.20.10 | |
| Redhat Enterprise Linux | =8.0 |
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Reference Links
- https://exchange.xforce.ibmcloud.com/vulnerabilities/192533
- https://www.ibm.com/support/pages/node/6493729 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=1887276
- https://lists.x.org/archives/xorg-announce/2020-December/003066.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1903259
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/87c64fc5b0db9f62f4e361444f4b60501ebf67b9
- https://access.redhat.com/errata/RHSA-2020:5408
- https://access.redhat.com/security/cve/cve-2020-25712
- https://access.redhat.com/errata/RHSA-2021:1804
Frequently Asked Questions
What is CVE-2020-25712?
CVE-2020-25712 is a vulnerability found in xorg-x11-server before 1.20.10 that can lead to a privilege escalation vulnerability.
What is the severity of CVE-2020-25712?
The severity of CVE-2020-25712 is critical with a CVSS score of 9.8.
How does CVE-2020-25712 affect data confidentiality and integrity?
CVE-2020-25712 can lead to a compromise of data confidentiality and integrity.
How can I fix CVE-2020-25712?
To fix CVE-2020-25712, update xorg-x11-server to version 1.20.10 or later.
Where can I find more information about CVE-2020-25712?
You can find more information about CVE-2020-25712 at the following references: [https://bugzilla.redhat.com/show_bug.cgi?id=1887276](https://bugzilla.redhat.com/show_bug.cgi?id=1887276), [https://lists.x.org/archives/xorg-announce/2020-December/003066.html](https://lists.x.org/archives/xorg-announce/2020-December/003066.html), [https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1903259](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1903259).
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