A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

glusterfs: glusterfs server exploitable via symlinks to relative paths glusterfs: Buffer overflow in "features/locks" translator allows for denial of service glusterfs: Heap-based buffer overflow via "gf_getspec_req" RPC message glusterfs: "features/index" translator can create arbitrary, empty files glusterfs: Unlimited file creation via "GF_XATTR_IOSTATS_DUMP_KEY" xattr allows for denial of service glusterfs: Repeat use of "GF_META_LOCK_KEY" xattr allows for memory exhaustion glusterfs: features/locks translator passes an user-controlled string to snprintf without a proper format string resulting in a denial of service

Affected: Ubuntu:Pro:18.04:LTS: glusterfs

A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.