CVE-2021-47240
published 2024-05-21CVE-2021-47240: In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in…
PriorityP429high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.23%
14.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds Read in
qrtr_endpoint_post. 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.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.46-1 (bookworm) | linux 5.10.46-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 194ccc88297ae78d0803adad83c6dcc369787c9e < f8111c0d7ed42ede41a3d0d393b104de0730a8a6 | f8111c0d7ed42ede41a3d0d393b104de0730a8a6 |
| linux | linux | >= 194ccc88297ae78d0803adad83c6dcc369787c9e < 26b8d10703a9be45d6097946b2b4011f7dd2c56f | 26b8d10703a9be45d6097946b2b4011f7dd2c56f |
| linux | linux | >= 194ccc88297ae78d0803adad83c6dcc369787c9e < 960b08dd36de1e341e3eb43d1c547513e338f4f8 | 960b08dd36de1e341e3eb43d1c547513e338f4f8 |
| linux | linux | >= 194ccc88297ae78d0803adad83c6dcc369787c9e < 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe | 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe |
| linux | linux | >= 194ccc88297ae78d0803adad83c6dcc369787c9e < ad9d24c9429e2159d1e279dc3a83191ccb4daf1d | ad9d24c9429e2159d1e279dc3a83191ccb4daf1d |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 4.15 < 4.19.196 | 4.19.196 |
| linux | linux_kernel | >= 4.20 < 5.4.128 | 5.4.128 |
| linux | linux_kernel | >= 5.11 < 5.12.13 | 5.12.13 |
| linux | linux_kernel | >= 5.5 < 5.10.46 | 5.10.46 |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
kernel: net: qrtr: fix OOB Read in qrtr_endpoint_post
vendor_redhat·2024-05-21·CVSS 7.1
CVE-2021-47240 [HIGH] CWE-125 kernel: net: qrtr: fix OOB Read in qrtr_endpoint_post
kernel: net: qrtr: fix OOB Read in qrtr_endpoint_post
In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds Read in
qrtr_endpoint_post. 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.
A vulnerability was found in the Linux kernel's QRTR protocol, where the OOB read in qrtr_endpoint_post function allow to read data outside its intended bounds. This occurs when a specific size value in
Debian
CVE-2021-47240: linux - In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ...
vendor_debian·2021·CVSS 7.1
CVE-2021-47240 [HIGH] CVE-2021-47240: linux - In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ...
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. 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.
Scope: local
bookworm: resolved (fixed in 5.10.46-1)
bullseye: resolved (fixed in 5.10.46-1)
forky: resolved (fixed in 5.10.46-1)
sid: resolved (fixed in 5.10.46-1)
trixie: resolved (fixed in 5.10.46-1)
GHSA
GHSA-6h98-v544-xj7q: In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds
ghsa_unreviewed·2024-05-21
CVE-2021-47240 [HIGH] CWE-125 GHSA-6h98-v544-xj7q: In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds
In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds Read in
qrtr_endpoint_post. 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.
OSV
CVE-2021-47240: In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds R
osv·2024-05-21·CVSS 7.1
CVE-2021-47240 [HIGH] CVE-2021-47240: In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds R
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. 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.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/19892ab9c9d838e2e5a7744d36e4bb8b7c3292fehttps://git.kernel.org/stable/c/26b8d10703a9be45d6097946b2b4011f7dd2c56fhttps://git.kernel.org/stable/c/960b08dd36de1e341e3eb43d1c547513e338f4f8https://git.kernel.org/stable/c/ad9d24c9429e2159d1e279dc3a83191ccb4daf1dhttps://git.kernel.org/stable/c/f8111c0d7ed42ede41a3d0d393b104de0730a8a6https://git.kernel.org/stable/c/19892ab9c9d838e2e5a7744d36e4bb8b7c3292fehttps://git.kernel.org/stable/c/26b8d10703a9be45d6097946b2b4011f7dd2c56fhttps://git.kernel.org/stable/c/960b08dd36de1e341e3eb43d1c547513e338f4f8https://git.kernel.org/stable/c/ad9d24c9429e2159d1e279dc3a83191ccb4daf1dhttps://git.kernel.org/stable/c/f8111c0d7ed42ede41a3d0d393b104de0730a8a6
2024-05-21
Published