Buffer overflow in the polymorphic opcode support in the Regular Expression Engine (regcomp.c) in Perl 5.8 allows context-dependent…

Description

Buffer overflow in the polymorphic opcode support in the Regular Expression Engine (regcomp.c) in Perl 5.8 allows context-dependent attackers to execute arbitrary code by switching from byte to Unicode (UTF) characters in a regular expression.

Scores

EPSS (exploitation in 30 days)

4.8% · top 8.0% of all CVEs (3 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a
• CWE-119 (opens in a new tab)

Affected products

• n/a

  • affected n/a

References (52)

• 27479 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1400 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• HPSBTU02311 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• ADV-2007-4238 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• TA07-352A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
• IZ10244 (opens in a new tab)vendor-advisoryx_refsource_AIXAPARx_transferred
• 27936 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20071110 FLEA-2007-0063-1 perl (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 28993 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• IZ10220 (opens in a new tab)vendor-advisoryx_refsource_AIXAPARx_transferred
• https://issues.rpath.com/browse/RPL-1813 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 31524 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• USN-552-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• oval:org.mitre.oval:def:10669 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 1018899 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• ADV-2008-0641 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 27756 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2007:0966 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 29074 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20080108 VMSA-2008-0001 Moderate OpenPegasus PAM Authentication Buffer Overflow and updated service console packages (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 27548 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2007:1011 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [Security-announce] 20080107 VMSA-2008-0001 Moderate OpenPegasus PAM Authentication Buffer Overflow and updated service console packages (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=323571 (opens in a new tab)x_refsource_MISCx_transferred
• 27546 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• GLSA-200711-28 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• ADV-2007-3724 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2008-014.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• OpenPKG-SA-2007.023 (opens in a new tab)vendor-advisoryx_refsource_OPENPKGx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=378131 (opens in a new tab)x_refsource_MISCx_transferred
• 231524 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 27531 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• APPLE-SA-2007-12-17 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 27515 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 27570 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://docs.info.apple.com/article.html?artnum=307179 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 27613 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 28368 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SR:2007:024 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 1018985 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• MDKSA-2007:207 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• ADV-2007-4255 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 20071112 FLEA-2007-0069-1 perl (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://www.ipcop.org/index.php?name=News&file=article&sid=41 (opens in a new tab)x_refsource_CONFIRMx_transferred
• perl-unicode-bo(38270) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 31208 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 28387 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.vmware.com/security/advisories/VMSA-2008-0001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2008-0064 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 28167 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 26350 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 20080123 UPDATED VMSA-2008-0001.1 Moderate OpenPegasus PAM Authentication Buffer Overflow and updated service console packages (opens in a new tab)mailing-listx_refsource_BUGTRAQx_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)

Record last updated 7 Aug 2024, 15:17 UTC.