Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0c2204a4ad710d95d348ea006f14ba926e842ffd to < bd69e0e8a7643ba5385f19f479e8e3da71f8d495affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 91cb30b6bb1880ba0748ca059bef50b8ac13793daffected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 6e3675251fcea06caecc61eb76462467558adfa6affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 76adf8f69b0bb3ab20be7c58f5d555027332d113affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 20855cef7e659ef84ac73251256fa530819b2346affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 2b930bc77e00cb27e1d6e1d497b3b596283465efaffected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 5640227d9a21c6a8be249a10677b832e7f40dc55affected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected5.10.259 to ≤ 5.10.*unaffected5.15.210 to ≤ 5.15.*unaffected6.1.176 to ≤ 6.1.*unaffected6.6.140 to ≤ 6.6.*unaffected6.12.86 to ≤ 6.12.*unaffected6.18.27 to ≤ 6.18.*unaffected7.0.4 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/bd69e0e8a7643ba5385f19f479e8e3da71f8d495 ↗
- https://git.kernel.org/stable/c/91cb30b6bb1880ba0748ca059bef50b8ac13793d ↗
- https://git.kernel.org/stable/c/6e3675251fcea06caecc61eb76462467558adfa6 ↗
- https://git.kernel.org/stable/c/0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3 ↗
- https://git.kernel.org/stable/c/76adf8f69b0bb3ab20be7c58f5d555027332d113 ↗
- https://git.kernel.org/stable/c/20855cef7e659ef84ac73251256fa530819b2346 ↗
- https://git.kernel.org/stable/c/2b930bc77e00cb27e1d6e1d497b3b596283465ef ↗
- https://git.kernel.org/stable/c/5640227d9a21c6a8be249a10677b832e7f40dc55 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗