netfilter: nft_set_rbtree: fix null deref on element insertion
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix null deref on element insertion There is no guarantee that rb_prev() will not return NULL in nft_rbtree_gc_elem(): general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] nft_add_set_elem+0x14b0/0x2990 nf_tables_newsetelem+0x528/0xb30 Furthermore, there is a possible use-after-free while iterating, 'node' can be free'd so we need to cache the next value to use.
CVE-2023-53566
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2023-53566
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7ab87a326f20c52ff4d9972052d085be951c704b",
"lessThan": "b76db53ee8802ee5683f8cb401d7e2ec6f9b3d56",
"versionType": "git"
},
{
"status": "affected",
"version": "181859bdfb9734aca449512fccaee4cacce64aed",
"lessThan": "899aa5638568abf5d69de7a7bb95e4615157375b",
"versionType": "git"
},
{
"status": "affected",
"version": "4aacf3d78424293e318c616016865380b37b9cc5",
"lessThan": "3fa13203b6d90cc3a33af47b058739f92ab82eef",
"versionType": "git"
},
{
"status": "affected",
"version": "2bf1435fa19d2c58054391b3bba40d5510a5758c",
"lessThan": "ec5caa765f7f6960011c919c9aeb1467940421f6",
"versionType": "git"
},
{
"status": "affected",
"version": "318cb24a4c3fce8140afaf84e4d45fcb76fb280b",
"lessThan": "a836be60a3aabcedcd9c79f545d409ace1f20ba6",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643",
"lessThan": "a337706c1fb35aac3f26b48aca80421bdbe1d33a",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643",
"lessThan": "61ae320a29b0540c16931816299eb86bf2b66c08",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.166",
"lessThan": "5.10.181",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.91",
"lessThan": "5.15.113",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.9",
"lessThan": "6.1.30",
"versionType": "semver"
}
],
"programFiles": [
"net/netfilter/nft_set_rbtree.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.181",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.113",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.30",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.3.4",
"versionType": "semver",
"lessThanOrEqual": "6.3.*"
},
{
"status": "unaffected",
"version": "6.4",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/nft_set_rbtree.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-53566
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30287 · Revision 1
- Added to Heist Feed
- Publisher date