CVE-2019-12527

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jul 11, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-125287.5An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memoryCVE-2019-125295.9An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic AutCVE-2019-12537.8An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerabCVE-2019-125309.8Incorrect access control was discovered in the stdonato Dashboard plugin through 0.9.7 for GLPI, affecting df.php, issue.php, load.php, mem.CVE-2019-125327.8Improper access control in the Insyde software tools may allow an authenticated user to potentially enable escalation of privilege, or inforCVE-2019-125376.1An issue was discovered in Zoho ManageEngine AssetExplorer. There is XSS via the SearchN.do search field.CVE-2019-125386.1An issue was discovered in Zoho ManageEngine ServiceDesk Plus 9.3. There is XSS via the SiteLookup.do search field.CVE-2019-125396.1An issue was discovered in the Purchase component of Zoho ManageEngine ServiceDesk Plus. There is XSS via the SearchN.do search field, a difCVE-2019-12545.5An information disclosure vulnerability exists when Windows Hyper-V writes uninitialized memory to disk, aka 'Windows Hyper-V Information DiCVE-2019-125406.1An issue was discovered in Zoho ManageEngine ServiceDesk Plus 10.5. There is XSS via the WorkOrder.do search field.CVE-2019-125416.1An issue was discovered in Zoho ManageEngine ServiceDesk Plus 9.3. There is XSS via the SolutionSearch.do searchText parameter.CVE-2019-125426.1An issue was discovered in Zoho ManageEngine ServiceDesk Plus 9.3. There is XSS via the SearchN.do userConfigID parameter.
CVE-2019-12527: High severity, CVSS 8.8 | Vulnix