MEDIUM
Double free vulnerability in the vba_read_project_strings function in vba_extract.c in libclamav in ClamAV before 0.97 might allow remote attackers to execute arbitrary code via crafted Visual Basic for Applications (VBA) data in a Microsoft Office document
Published Feb 23, 2011
6.8
MEDIUMCVSS 2.0
EPSS 4.21%
Description
Double free vulnerability in the vba_read_project_strings function in vba_extract.c in libclamav in ClamAV before 0.97 might allow remote attackers to execute arbitrary code via crafted Visual Basic for Applications (VBA) data in a Microsoft Office document. NOTE: some of these details are obtained from third party information.
Affected products
No data.
OR
- ≤ 0.96.5
- 0.01
- 0.02
- 0.3
- 0.03
- 0.05
- 0.8
- 0.9
- 0.10
- 0.12
- 0.13
- 0.14
- 0.14
- 0.15
- 0.20
- 0.21
- 0.22
- 0.23
- 0.24
- 0.51
- 0.52
- 0.53
- 0.54
- 0.60
- 0.60p
- 0.65
- 0.66
- 0.67
- 0.67-1
- 0.68
- 0.68.1
- 0.70
- 0.70
- 0.71
- 0.72
- 0.73
- 0.74
- 0.75
- 0.75.1
- 0.80
- 0.80
- 0.80
- 0.80
- 0.80
- 0.80
- 0.80_rc
- 0.81
- 0.81
- 0.82
- 0.83
- 0.84
- 0.84
- 0.84
- 0.85
- 0.85.1
- 0.86
- 0.86
- 0.86.1
- 0.86.2
- 0.87
- 0.87.1
- 0.88
- 0.88.1
- 0.88.2
- 0.88.3
- 0.88.4
- 0.88.5
- 0.88.6
- 0.88.7
- 0.88.7_p0
- 0.88.7_p1
- 0.90
- 0.90
- 0.90
- 0.90
- 0.90
- 0.90.1
- 0.90.1_p0
- 0.90.2
- 0.90.2_p0
- 0.90.3
- 0.90.3_p0
- 0.90.3_p1
- 0.91
- 0.91
- 0.91
- 0.91.1
- 0.91.2
- 0.91.2_p0
- 0.92
- 0.92.1
- 0.92_p0
- 0.93
- 0.93.1
- 0.93.2
- 0.93.3
- 0.94
- 0.94.1
- 0.94.2
- 0.95
- 0.95
- 0.95
- 0.95
- 0.95
- 0.95.1
- 0.95.2
- 0.95.3
- 0.96
- 0.96
- 0.96
- 0.96.1
- 0.96.2
- 0.96.3
- 0.96.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.21% 0.04215
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04215
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.21% (0.04215) | 90.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.21% (0.04215) | 89.66th | v5 (v2026.06.15) |
| Feb 20, 2026 | 9.45% (0.09445) | 92.64th | v4 (v2025.03.14) |
| Dec 28, 2025 | 8.36% (0.08355) | 91.98th | v4 (v2025.03.14) |
| Dec 27, 2025 | 7.15% (0.07147) | 91.29th | v4 (v2025.03.14) |
| Oct 28, 2025 | 8.36% (0.08355) | 91.88th | v4 (v2025.03.14) |
| Oct 27, 2025 | 7.15% (0.07147) | 91.17th | v4 (v2025.03.14) |
| Oct 1, 2025 | 8.36% (0.08355) | 91.98th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.58% (0.06583) | 90.24th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.12% (0.12119) | 89.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.58% (0.06583) | 90.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 8.62% (0.08623) | 94.77th | v3 (v2023.03.01) |
| Jan 22, 2024 | 8.62% (0.08623) | 93.89th | v3 (v2023.03.01) |
| Nov 8, 2023 | 8.83% (0.08834) | 93.90th | v3 (v2023.03.01) |
| Oct 14, 2023 | 10.21% (0.10205) | 94.29th | v3 (v2023.03.01) |
| Aug 24, 2023 | 9.71% (0.09712) | 94.05th | v3 (v2023.03.01) |
| May 8, 2023 | 9.33% (0.09326) | 93.75th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.82% (0.07818) | 93.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 9.92% (0.09915) | 94.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 9.92% (0.09915) | 94.04th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.92% (0.09915) | 87.53th | v2 (v2022.01.01) |
Weaknesses (1)
References (20)
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=blob%3Bf=ChangeLog%3Bhb=clamav-0.97 x_refsource_CONFIRM
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commit%3Bh=d21fb8d975f8c9688894a8cef4d50d977022e09f x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055771.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055777.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html vendor-advisoryx_refsource_SUSE
- http://openwall.com/lists/oss-security/2011/02/21/1 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/02/21/4 mailing-listx_refsource_MLIST
- http://osvdb.org/70937 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/43392 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43498 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43752 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1025100 vdb-entryx_refsource_SECTRACK
- http://www.mandriva.com/en/support/security/advisories/?name=MDVA-2011:007 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/46470 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1076-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2011/0453 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0458 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0523 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65544 vdb-entryx_refsource_XF
- https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2486 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Feb 23, 2011
Updated Aug 6, 2024
Reserved Feb 14, 2011
Link CVE-2011-1003
CISA Vulnrichment
Updated n/a