ghsa-v8p3-mfrc-9v8j
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb
We should always check if skb_header_pointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported:
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_rcv_ootb net/sctp/input.c:705 [inline] RIP: 0010:sctp_rcv+0x1d84/0x3220 net/sctp/input.c:196 Call Trace: sctp6_rcv+0x38/0x60 net/sctp/ipv6.c:1109 ip6_protocol_deliver_rcu+0x2e9/0x1ca0 net/ipv6/ip6_input.c:422 ip6_input_finish+0x62/0x170 net/ipv6/ip6_input.c:463 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:460 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x28c/0x3c0 net/ipv6/ip6_input.c:297
{
"affected": [],
"aliases": [
"CVE-2021-47397"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:25Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb\n\nWe should always check if skb_header_pointer\u0027s return is NULL before\nusing it, otherwise it may cause null-ptr-deref, as syzbot reported:\n\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:sctp_rcv_ootb net/sctp/input.c:705 [inline]\n RIP: 0010:sctp_rcv+0x1d84/0x3220 net/sctp/input.c:196\n Call Trace:\n \u003cIRQ\u003e\n sctp6_rcv+0x38/0x60 net/sctp/ipv6.c:1109\n ip6_protocol_deliver_rcu+0x2e9/0x1ca0 net/ipv6/ip6_input.c:422\n ip6_input_finish+0x62/0x170 net/ipv6/ip6_input.c:463\n NF_HOOK include/linux/netfilter.h:307 [inline]\n NF_HOOK include/linux/netfilter.h:301 [inline]\n ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:472\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]\n NF_HOOK include/linux/netfilter.h:307 [inline]\n NF_HOOK include/linux/netfilter.h:301 [inline]\n ipv6_rcv+0x28c/0x3c0 net/ipv6/ip6_input.c:297",
"id": "GHSA-v8p3-mfrc-9v8j",
"modified": "2024-12-24T18:30:48Z",
"published": "2024-05-21T15:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47397"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/77bc7dcf0fcc1519341a91788d7a2914fcfddf6d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8180611c238e11676612eb2a9828b1c7a3a4d77b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c630a7b4f9dec63f08bd881ab77984a724a5124"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9c6591ae8e63f93c895ad5e2703c36c548aac997"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ec018021cf445abbe8e2f3e2a7f1dcc813cb8ea1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7e745f8e94492a8ac0b0a26e25f2b19d342918f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.