CVE-2026-68300
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
sctp: auth: verify auth requirement when auth_chunk is NULL
In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when auth_chunk is NULL sctp_auth_chunk_verify() returns true unconditionally when chunk->auth_chunk is NULL, silently skipping authentication. This is incorrect when: 1. skb_clone() failed in the BH receive path, leaving auth_chunk NULL. In sctp_endpoint_bh_rcv() asoc is NULL for new connections, so the early sctp_auth_recv_cid() check cannot catch this. 2. No AUTH chunk precedes COOKIE-ECHO, so skb_clone() is never called and auth_chunk remains NULL. Fix by checking sctp_auth_recv_cid() when auth_chunk is NULL: if authentication is required, return false to drop the chunk; otherwise continue normally.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | a129792b3aef15002746c13522781d92ed3522c3 | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 5a022ac51ad83b4ce6c898f4b9eefc65bd26b247 | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 6caf0e8590c0bf05a76b0d387726adf3a6f3725c | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | ec2e157fc9678a9bc411305a25aec3fd337d7efb | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 28c5fdce9dd955d2baf5e28987819b6d7cfaf646 | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 18957373920caf5cdaf5cf32e5d1d7a99ca7700a | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 83f5031f2a6a49d696eb4cc0898345d12f9c6451 | Unavailable | None listed |
| bbd0d59809f923ea2b540cbd781b32110e249f6e | affected | git | 8e04823c120b376ef7dab14b60ebf6823aa16c14 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.24 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.24 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |