The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a…

Description

The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by "appending to a file from a bad address," which triggers a fault that prevents the unused memory from being cleared in the kernel buffer.

Scores

EPSS (exploitation in 30 days)

0.43% · top 63% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (22)

• [linux-kernel] 20061105 Linux 2.6.16.31-rc1 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• oval:org.mitre.oval:def:9885 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• SUSE-SA:2006:079 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• kernel-copyfromuser-information-disclosure(29378) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 20379 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• RHSA-2007:0014 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• ADV-2006-3938 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-1237 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 24206 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 1017090 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 23474 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 23064 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1233 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 23370 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 23997 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=52149ba6b0ddf3e9d965257cc0513193650b3ea8 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 22497 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2006:0710 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 23395 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22289 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2006-5174](https://trackcve.app/badge/CVE-2006-5174.svg)](https://trackcve.app/cve/CVE-2006-5174)

Record last updated 7 Aug 2024, 19:41 UTC.