Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid sctp_auth_ep_add_chunkid() uses SCTP_NUM_CHUNK_TYPES (20) as the capacity limit for ep->auth_chunk_list, allowing it to hold up to 20 chunk entries (param_hdr.length up to 24). However, the copy destination asoc->c.auth_chunks in struct sctp_cookie is only SCTP_AUTH_MAX_CHUNKS (16) entries (20 bytes). When more than 16 chunks are added, sctp_association_init() memcpy overflows the destination by up to 4 bytes. Fix by using SCTP_AUTH_MAX_CHUNKS as the capacity limit, matching the destination capacity.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1f485649f52929d9937b346a920a522a7363e202 before 3d22a7da2e264f407c729f33a0a346ff76108bc6; affected 1f485649f52929d9937b346a920a522a7363e202 before 6837c1c19a259518974cbc5a52017646e3906564; affected 1f485649f52929d9937b346a920a522a7363e202 before 54bb4c03fa17cdcb157c26c33e60a78cf32960f5; affected 1f485649f52929d9937b346a920a522a7363e202 before 5a365f1e423444c5da7eb689a8661633dad43e48; affected 1f485649f52929d9937b346a920a522a7363e202 before 886e28e14ab655012779016d251fef53d103aa12; affected 1f485649f52929d9937b346a920a522a7363e202 before 11092d79eb2b7c0068382f72fc2416d1786bb2e0; affected 1f485649f52929d9937b346a920a522a7363e202 before b6ea3dda09eb4d5caf7bbc00f857688cf9e98255; affected 1f485649f52929d9937b346a920a522a7363e202 before ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 |
| Linux / Linux | affected 2.6.24; unaffected 0 before 2.6.24; 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/3d22a7da2e264f407c729f33a0a346ff76108bc6
- https://git.kernel.org/stable/c/6837c1c19a259518974cbc5a52017646e3906564
- https://git.kernel.org/stable/c/54bb4c03fa17cdcb157c26c33e60a78cf32960f5
- https://git.kernel.org/stable/c/5a365f1e423444c5da7eb689a8661633dad43e48
- https://git.kernel.org/stable/c/886e28e14ab655012779016d251fef53d103aa12
- https://git.kernel.org/stable/c/11092d79eb2b7c0068382f72fc2416d1786bb2e0
- https://git.kernel.org/stable/c/b6ea3dda09eb4d5caf7bbc00f857688cf9e98255
- https://git.kernel.org/stable/c/ff04b26794a16a8a879eb4fd2c02c2d6b03850e9
ADP enrichment
No English description supplied.
No references supplied.