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redhatcveRedhat.comRH:CVE-2021-47240
HistoryMay 23, 2024 - 2:02 p.m.

CVE-2021-47240

2024-05-2314:02:28
redhat.com
access.redhat.com
2
linux kernel
qrtr
vulnerability

6.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

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.

6.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%