Vulnerability · Published Mar 30, 2021 · Assigned by mitre
CVE-2021-29647
Medium 5.5
In plain English
A medium-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 69.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.10.28-1 | DEBIAN-CVE-2021-29647 |
| Debian:13 | linux | 5.10.28-1 | DEBIAN-CVE-2021-29647 |
| Debian:14 | linux | 5.10.28-1 | DEBIAN-CVE-2021-29647 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2021-29647 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2021-29647 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2021-29647 |
Affected products (as reported)
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.11 x_refsource_MISC
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=50535249f624d0072cd885bcdce4e4b6fb770160 x_refsource_MISC
- FEDORA-2021-41fb54ae9f vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-6b0f287b8b vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-2306e89112 vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update mailing-list, x_refsource_MLIST