CVE-2021-47240
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47240
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47240.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47240
- Related
- Published
- 2024-05-21T15:15:13Z
- Modified
- 2024-09-11T02:00:06Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtrendpointpost
Syzbot reported slab-out-of-bounds Read in qrtrendpointpost. The problem was in wrong size type:
if (len != ALIGN(size, 4) + hdrlen) goto err;If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293 in header this check won't fail and
skb_put_data(skb, data + hdrlen, size);will read out of bound from data, which is hdrlen allocated block.
- References
-
- https://git.kernel.org/stable/c/19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe
- https://git.kernel.org/stable/c/26b8d10703a9be45d6097946b2b4011f7dd2c56f
- https://git.kernel.org/stable/c/960b08dd36de1e341e3eb43d1c547513e338f4f8
- https://git.kernel.org/stable/c/ad9d24c9429e2159d1e279dc3a83191ccb4daf1d
- https://git.kernel.org/stable/c/f8111c0d7ed42ede41a3d0d393b104de0730a8a6
- https://security-tracker.debian.org/tracker/CVE-2021-47240
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source