Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: libceph: Fix multiplication overflow in decode_new_up_state_weight() If a message of type CEPH_MSG_OSD_MAP contains a (maliciously) corrupted osdmap, out-of-bounds memory accesses may occur in decode_new_up_state_weight(). This happens because the bounds check for the new_state part is based on calculating its length depending on a len value read from the incoming message. This calculation may overflow leading to an incorrect bounds check. Subsequently, out-of-bounds reads may occur when decoding this part. This patch switches the multiplication to use check_mul_overflow() to abort processing the osdmap if an overflow occurred. Therefore, osdmaps/messages containing large values for len that result in a multiplication overflow are treated as invalid. [ idryomov: rename new_state_len -> new_state_item_size, formatting ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 930c532869774ebf8af9efe9484c597f896a7d46 before 2ceee3b77b83052648c40fef965f836fd7699d26; affected 930c532869774ebf8af9efe9484c597f896a7d46 before e4473751cc37db41f3f7da25d64a23e0c74570f1; affected 930c532869774ebf8af9efe9484c597f896a7d46 before f6961070c326bd158c38fa48756cde2bd78c4aaa; affected 930c532869774ebf8af9efe9484c597f896a7d46 before 05c90e059269f087becfcce23348496085835c29; affected 930c532869774ebf8af9efe9484c597f896a7d46 before 143ba49ead77ec483c0326f8aaad8649874e99c4; affected 930c532869774ebf8af9efe9484c597f896a7d46 before 1732d89dfcd74f6fde9ce70900d316c4a151c153; affected 930c532869774ebf8af9efe9484c597f896a7d46 before bee4b5b53e7bff0467fd916cc44c9b190733c6bd; affected 930c532869774ebf8af9efe9484c597f896a7d46 before 98917a499ec7064c14fc56d180a4fd636fc2784c; affected 1196c36fd53c3b1615eb02f986cb727b1dfc1047; affected bbc3aa6b0e6050b2b2e04a08dd4d6423d576b196; affected 6b96b2d473701b45df3fea8dd9796b6ec39e6d54; affected 7405d73cea0d0e6c541f5c534078feeb46188844; affected 8777c9f654637d56f4c4ca54eb1bc7c609b70085; affected 6831c98ce0b8a3e88db64aa224372effd0dcc694; affected 032951d32c13b7564dfba82758260cb7aa1149d2; affected 14877928f10667a5606383885d004f7185f33718; affected 3.10.103 before 3.11; affected 3.12.63 before 3.13; affected 3.14.75 before 3.15; affected 3.16.39 before 3.17; affected 3.18.39 before 3.19; affected 4.1.30 before 4.2; affected 4.4.17 before 4.5; affected 4.6.6 before 4.7 |
| Linux / Linux | affected 4.7; unaffected 0 before 4.7; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2ceee3b77b83052648c40fef965f836fd7699d26
- https://git.kernel.org/stable/c/e4473751cc37db41f3f7da25d64a23e0c74570f1
- https://git.kernel.org/stable/c/f6961070c326bd158c38fa48756cde2bd78c4aaa
- https://git.kernel.org/stable/c/05c90e059269f087becfcce23348496085835c29
- https://git.kernel.org/stable/c/143ba49ead77ec483c0326f8aaad8649874e99c4
- https://git.kernel.org/stable/c/1732d89dfcd74f6fde9ce70900d316c4a151c153
- https://git.kernel.org/stable/c/bee4b5b53e7bff0467fd916cc44c9b190733c6bd
- https://git.kernel.org/stable/c/98917a499ec7064c14fc56d180a4fd636fc2784c
ADP enrichment
No English description supplied.
No references supplied.