CVE-2011-0064
The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index.
Timeline
ID reserved
By mitre
- 3 months later
· 3 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 3.3% · top 11% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (23)
- USN-1082-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 43578 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.novell.com/show_bug.cgi?id=672502 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2011:040 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- ADV-2011-0543 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2011-0555 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- SUSE-SR:2011:005 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=678563 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2011-0558 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 43800 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- pango-hbbufferensure-bo(65770) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- https://build.opensuse.org/request/show/63070 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2011-0683 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1025145 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=606997 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2011-3194 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 43559 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 43572 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2011-0584 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 46632 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2011:0309 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-2178 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_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
[](https://cveledger.app/cve/CVE-2011-0064)Record last updated .