Описание
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Fix exposure in nfsd4_decode_bitmap()
rtm@csail.mit.edu reports:
nfsd4_decode_bitmap4() will write beyond bmval[bmlen-1] if the RPC directs it to do so. This can cause nfsd4_decode_state_protect4_a() to write client-supplied data beyond the end of nfsd4_exchange_id.spo_must_allow[] when called by nfsd4_decode_exchange_id().
Rewrite the loops so nfsd4_decode_bitmap() cannot iterate beyond @bmlen.
Reported by: rtm@csail.mit.edu
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Fix exposure in nfsd4_decode_bitmap()
rtm@csail.mit.edu reports:
nfsd4_decode_bitmap4() will write beyond bmval[bmlen-1] if the RPC directs it to do so. This can cause nfsd4_decode_state_protect4_a() to write client-supplied data beyond the end of nfsd4_exchange_id.spo_must_allow[] when called by nfsd4_decode_exchange_id().
Rewrite the loops so nfsd4_decode_bitmap() cannot iterate beyond @bmlen.
Reported by: rtm@csail.mit.edu
CVE ID
Связанные уязвимости
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
[REJECTED CVE] In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix exposure in nfsd4_decode_bitmap() The Linux kernel CVE team has assigned CVE-2021-47213 to this issue.
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.