binfmt_misc: fix shift-out-of-bounds in check_special_flags (Linux Linux)

CVE-2022-50497
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: binfmt_misc: fix shift-out-of-bounds in check_special_flags UBSAN reported a shift-out-of-bounds warning: left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1 Since the type of Node's flags is unsigned long, we should define these macros with same type too.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f1a48994b3e516d5c7fd5d12204fdba7a604771 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea6145370be8016755c43aca799815fc4b8c88b1 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 97382a2639b1cd9631f6069061e9d7062cd2b098 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 419b808504c26b3e3342365f34ccd0843e09a7f8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88cea1676a09f7c45a1438153a126610c33b1590
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.9.337 ≤ 4.9.* ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD