CVE-2021-29647
First published: Tue Mar 30 2021(Updated: )
An issue was discovered in the Linux kernel before 5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows attackers to obtain sensitive information from kernel memory because of a partially uninitialized data structure, aka CID-50535249f624.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Android | ||
| Linux Kernel | <5.11.11 | |
| Red Hat Fedora | =32 | |
| Red Hat Fedora | =33 | |
| Red Hat Fedora | =34 | |
| Debian Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.11
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=50535249f624d0072cd885bcdce4e4b6fb770160
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RZGMUP6QEHJJEKPMLKOSPWYMW7PXFC2M/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VTADK5ELGTATGW2RK3K5MBJ2WGYCPZCM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKRNELXLVFDY6Y5XDMWLIH3VKIMQXLLR/
- https://launchpad.net/bugs/cve/CVE-2021-29647
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RZGMUP6QEHJJEKPMLKOSPWYMW7PXFC2M/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VTADK5ELGTATGW2RK3K5MBJ2WGYCPZCM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKRNELXLVFDY6Y5XDMWLIH3VKIMQXLLR/
- https://android.googlesource.com/kernel/common/+/50535249f624d0072cd885bcdce4e4b6fb770160
- https://source.android.com/docs/security/bulletin/2021-10-01 (Advisory)
- https://git.kernel.org/linus/50535249f624d0072cd885bcdce4e4b6fb770160
- https://security-tracker.debian.org/tracker/CVE-2021-29647
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29647
- https://nvd.nist.gov/vuln/detail/CVE-2021-29647
- https://ubuntu.com/security/CVE-2021-29647
Frequently Asked Questions
What is the severity of CVE-2021-29647?
CVE-2021-29647 is classified as a medium severity vulnerability due to its potential to expose sensitive information from kernel memory.
How do I fix CVE-2021-29647?
To fix CVE-2021-29647, update your Linux kernel to version 5.11.11 or newer.
Which systems are affected by CVE-2021-29647?
CVE-2021-29647 affects various Linux kernel versions prior to 5.11.11, including specific releases of Google Android, Fedora, and Debian.
What type of vulnerability is CVE-2021-29647?
CVE-2021-29647 is a memory vulnerability that allows attackers to obtain sensitive information due to a partially uninitialized data structure.
When was CVE-2021-29647 discovered?
CVE-2021-29647 was discovered before the release of Linux kernel version 5.11.11.
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