wireshark: Double-free flaw by uncompressing of a zlib compressed packet
Published Jun 6, 2011
4.3
MEDIUMCVSS 2.0
EPSS 1.97%
Description
Double free vulnerability in the tvb_uncompress function in epan/tvbuff.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows remote attackers to cause a denial of service (application crash) via a packet with malformed data that uses zlib compression.
Affected products
No data.
Configuration 1
- 1.2
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.16
No data.
Red Hat Enterprise Linux 6
wireshark-0:1.2.15-2.el6_2.1
Fixed · RHSA-2012:0509
Red Hat Enterprise Linux 4
wireshark
Not affected
Red Hat Enterprise Linux 5
wireshark
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | wireshark-0:1.2.15-2.el6_2.1 | Fixed | RHSA-2012:0509 |
| Red Hat Enterprise Linux 4 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 5 | wireshark | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of wireshark as shipped with Red Hat Enterprise Linux 4 and 5.
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.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.97% (0.01971) | 79.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.97% (0.01971) | 77.77th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.92% (0.02919) | 85.16th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.11% (0.07109) | 85.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.92% (0.02919) | 85.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.89% (0.00892) | 83.32th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.89% (0.00892) | 82.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.89% (0.00892) | 80.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (22)
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=37081 x_refsource_CONFIRMPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061290.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061437.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061477.html vendor-advisoryx_refsource_FEDORA
- http://openwall.com/lists/oss-security/2011/05/31/20 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/06/01/1 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/06/01/11 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/44449 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/44958 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/45149 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/48947 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2011/dsa-2274 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/48066 vdb-entryx_refsource_BID
- http://www.wireshark.org/security/wnpa-sec-2011-07.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.wireshark.org/security/wnpa-sec-2011-08.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2011-2174 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5908 x_refsource_CONFIRMExploitPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=710097 x_refsource_CONFIRMPatchIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67793 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2011-2174
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14777 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2011-2174
Change history (0)
No recorded changes yet.