afs: Increase buffer size in afs_update_volume_status()

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Summary

CVECVE-2024-26736
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-03 17:15:51 UTC
Updated2026-08-04 11:16:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: afs: Increase buffer size in afs_update_volume_status() The max length of volume->vid value is 20 characters. So increase idbuf[] size up to 24 to avoid overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. [DH: Actually, it's 20 + NUL, so increase it to 24 and use snprintf()]

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-787

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 5c27d85a69fa16a08813ba37ddfb4bbc9a1ed6b5 git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 d9b5e2b7a8196850383c70d099bfd39e81ab6637 git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 e56662160fc24d28cb75ac095cc6415ae1bda43e git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 e8530b170e464017203e3b8c6c49af6e916aece1 git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 6e6065dd25b661420fac19c34282b6c626fcd35e git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 d34a5e57632bb5ff825196ddd9a48ca403626dfa git Not specified
CNA Linux Linux affected d2ddc776a4581d900fc3bdc7803b403daae64d88 6ea38e2aeb72349cad50e38899b0ba6fbcb2af3d git Not specified
CNA Linux Linux affected 4.15 Not specified
CNA Linux Linux unaffected 4.15 semver Not specified
CNA Linux Linux unaffected 5.4.270 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.211 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.150 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.80 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.19 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.7 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
afs: Increase buffer size in afs_update_volume_status() - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 6000567 Debian Security Update for linux (DSA 5658-1)

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