Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and…

Description

Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information.

Scores

EPSS (exploitation in 30 days)

2.5% · top 15% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.

Weakness

• n/a
• CWE-399 (opens in a new tab)All about CWE-399 and its CVEs

Affected products

• n/a

  • affected n/a

References (40)

• libicu-dointerval-bo(39936) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 233922 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 28615 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 29852 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 28783 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 29291 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SA:2008:023 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 29242 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=429025 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1019269 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• GLSA-200805-16 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 29987 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SR:2008:005 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 27455 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• oval:org.mitre.oval:def:10507 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 29294 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.openoffice.org/security/cves/CVE-2007-4770.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• GLSA-200803-20 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• DSA-1511 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• oval:org.mitre.oval:def:5431 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0043 (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2008:0090 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 29333 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://issues.rpath.com/browse/RPL-2199 (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-591-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• MDVSA-2008:026 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 231641 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• ADV-2008-1375 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 29194 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 30179 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• FEDORA-2008-1076 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• http://www.openoffice.org/security/cves/CVE-2007-5745.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 28575 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20080206 rPSA-2008-0043-1 icu (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• [icu-support] 20080122 ICU Patch for bugs in Regular Expressions (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 28669 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2008-0807 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 29910 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• FEDORA-2008-1036 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• ADV-2008-0282 (opens in a new tab)vdb-entryx_refsource_VUPENx_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-2007-4771](https://trackcve.app/badge/CVE-2007-4771.svg)](https://trackcve.app/cve/CVE-2007-4771)

Record last updated 7 Aug 2024, 15:08 UTC.