Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are rejected during option validation.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 158b9995d3c87f3b93f5c22df54a12e12a3438b3; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 7c6876ec1b227261b51803f784c7be1b2242a1a0; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 2c4de9988e9ddc760b750d6b6e701c35ff60ad14; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 2a99224c120823987e4d829726f4ecb33e03fc1e; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 61e78679c7c9ca685bff58e4b6348304dc60aafd; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before 4a4a1d41c6e901e773bcf795f562a47fa71f692a; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before f618cbe9b24cd0202004d2db781d5f80ab77037f; affected c1aa8347e73e4092411fbd96cc59531fb7e76d04 before d335dcc6f521571d57117b8deeebc940836e5450 |
| Linux / Linux | affected 3.19; unaffected 0 before 3.19; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/158b9995d3c87f3b93f5c22df54a12e12a3438b3
- https://git.kernel.org/stable/c/7c6876ec1b227261b51803f784c7be1b2242a1a0
- https://git.kernel.org/stable/c/2c4de9988e9ddc760b750d6b6e701c35ff60ad14
- https://git.kernel.org/stable/c/2a99224c120823987e4d829726f4ecb33e03fc1e
- https://git.kernel.org/stable/c/61e78679c7c9ca685bff58e4b6348304dc60aafd
- https://git.kernel.org/stable/c/4a4a1d41c6e901e773bcf795f562a47fa71f692a
- https://git.kernel.org/stable/c/f618cbe9b24cd0202004d2db781d5f80ab77037f
- https://git.kernel.org/stable/c/d335dcc6f521571d57117b8deeebc940836e5450
ADP enrichment
No English description supplied.
No references supplied.