A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can…

Description

A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the parent process. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.

Scores

EPSS (exploitation in 30 days)

3.0% · top 12% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.

Weakness

• Out-of-bounds write with malformed IPC messages
• CWE-787 (opens in a new tab)All about CWE-787 and its CVEs

Affected products

• Mozilla · Thunderbird

  • affected unspecified – < 52.7

• Mozilla · Firefox ESR

  • affected unspecified – < 52.7

• Mozilla · Firefox

  • affected unspecified – < 59

References (18)

• DSA-4139 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• GLSA-201810-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 103388 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• GLSA-201811-13 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• RHSA-2018:0527 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• USN-3545-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• [debian-lts-announce] 20180315 [SECURITY] [DLA 1308-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://www.mozilla.org/security/advisories/mfsa2018-09/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.mozilla.org/security/advisories/mfsa2018-07/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2018:0526 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [debian-lts-announce] 20180329 [SECURITY] [DLA 1327-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• DSA-4155 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• RHSA-2018:0648 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2018:0647 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 1040514 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• USN-3596-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• https://www.mozilla.org/security/advisories/mfsa2018-06/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=1428947 (opens in a new tab)x_refsource_CONFIRMx_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-2018-5129](https://trackcve.app/badge/CVE-2018-5129.svg)](https://trackcve.app/cve/CVE-2018-5129)

Record last updated 5 Aug 2024, 05:26 UTC.