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CVE-2023-34256

CVSS v3.1 5.5 (Medium)
55% Progress
EPSS 0.04 % (15th)
0.04% Progress
Affected Products 3
Advisories 12
NVD Status Modified
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software Tools, Exploits & PoC Graph Web & Social Timeline

An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an offset. NOTE: this is disputed by third parties because the kernel is not intended to defend against attackers with the stated "When modifying the block device while it is mounted by the filesystem" access.

Weaknesses
CWE-125
Out-of-bounds Read
CVE Status
PUBLISHED
NVD Status
Modified
CNA
MITRE
Published Date
2023-05-31 20:15:10
(15 months ago)
Updated Date
2024-08-02 16:16:11
(6 weeks ago)

Affected Products

Debian

Linux

Suse

Configuration #1

    CPE23 From Up To
  Linux Kernel prior 6.3.3 version cpe:2.3:o:linux:linux_kernel < 6.3.3

Configuration #2

    CPE23 From Up To
  Suse Linux Enterprise 12.0 SP5 cpe:2.3:o:suse:linux_enterprise:12.0:sp5
  Suse Linux Enterprise 15.0 SP4 cpe:2.3:o:suse:linux_enterprise:15.0:sp4
  Suse Linux Enterprise 15.0 SP5 cpe:2.3:o:suse:linux_enterprise:15.0:sp5

Configuration #3

    CPE23 From Up To
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0