HIGH
A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory
Published Feb 9, 2017
7.5
HIGHCVSS 3.0
EPSS 74.00%
Description
A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory. A remote attacker may exploit this vulnerability to obtain Secure Sockets Layer (SSL) session IDs from other sessions. It is possible that other data from uninitialized memory may be returned as well.
Affected products
- Vendor F5 Networks Product F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, PEM, PSM Defaultn/a
- Version 11.6.1 before 11.6.1 HF1 and 12.1.x before 12.1.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| F5 Networks | F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, PEM, PSM | n/a |
|
Configuration 1
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 2
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 3
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 4
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 5
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 6
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 7
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
Configuration 8
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 9
OR
- 11.4.0
- 11.4.1
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 11.6.0
- 11.6.1
- 12.0.0
- 12.1.0
- 12.1.1
- 12.1.2
Configuration 10
OR
- 11.4.0
- 11.4.1
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
74.00% 0.74000
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.74000
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 (55 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 74.00% (0.74000) | 99.47th | v5 (v2026.06.15) |
| Sep 22, 2026 | 74.00% (0.74000) | 99.46th | v5 (v2026.06.15) |
| Sep 21, 2026 | 62.53% (0.62534) | 99.18th | v5 (v2026.06.15) |
| Sep 6, 2026 | 74.00% (0.74000) | 99.45th | v5 (v2026.06.15) |
| Sep 5, 2026 | 62.53% (0.62534) | 99.16th | v5 (v2026.06.15) |
| Aug 30, 2026 | 74.00% (0.74000) | 99.44th | v5 (v2026.06.15) |
| Aug 28, 2026 | 62.53% (0.62534) | 99.15th | v5 (v2026.06.15) |
| Aug 24, 2026 | 74.00% (0.74000) | 99.44th | v5 (v2026.06.15) |
| Aug 23, 2026 | 62.53% (0.62534) | 99.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 73.27% (0.73273) | 99.39th | v5 (v2026.06.15) |
| Apr 13, 2026 | 67.47% (0.67474) | 98.57th | v4 (v2025.03.14) |
| Apr 6, 2026 | 75.98% (0.75979) | 98.91th | v4 (v2025.03.14) |
| Mar 4, 2026 | 72.34% (0.72341) | 98.73th | v4 (v2025.03.14) |
| Mar 3, 2026 | 63.13% (0.63128) | 98.38th | v4 (v2025.03.14) |
| Mar 1, 2026 | 60.60% (0.60603) | 98.26th | v4 (v2025.03.14) |
| Feb 6, 2026 | 70.34% (0.70345) | 98.64th | v4 (v2025.03.14) |
| Feb 4, 2026 | 60.13% (0.60134) | 98.21th | v4 (v2025.03.14) |
| Feb 1, 2026 | 69.22% (0.69215) | 98.61th | v4 (v2025.03.14) |
| Jan 18, 2026 | 60.13% (0.60134) | 98.20th | v4 (v2025.03.14) |
| Jan 4, 2026 | 73.65% (0.73652) | 98.76th | v4 (v2025.03.14) |
| Jan 1, 2026 | 63.04% (0.63040) | 98.33th | v4 (v2025.03.14) |
| Dec 4, 2025 | 73.65% (0.73652) | 98.75th | v4 (v2025.03.14) |
| Dec 1, 2025 | 63.04% (0.63040) | 98.31th | v4 (v2025.03.14) |
| Nov 4, 2025 | 73.65% (0.73652) | 98.75th | v4 (v2025.03.14) |
| Nov 1, 2025 | 63.04% (0.63040) | 98.31th | v4 (v2025.03.14) |
| Oct 4, 2025 | 73.65% (0.73652) | 98.76th | v4 (v2025.03.14) |
| Oct 1, 2025 | 63.04% (0.63040) | 98.34th | v4 (v2025.03.14) |
| Sep 4, 2025 | 73.65% (0.73652) | 98.77th | v4 (v2025.03.14) |
| Sep 1, 2025 | 63.04% (0.63040) | 98.34th | v4 (v2025.03.14) |
| Aug 4, 2025 | 73.65% (0.73652) | 98.75th | v4 (v2025.03.14) |
| Aug 1, 2025 | 63.04% (0.63040) | 98.32th | v4 (v2025.03.14) |
| Jul 30, 2025 | 68.64% (0.68644) | 98.54th | v4 (v2025.03.14) |
| Jul 25, 2025 | 69.67% (0.69672) | 98.57th | v4 (v2025.03.14) |
| Jul 12, 2025 | 75.44% (0.75435) | 98.82th | v4 (v2025.03.14) |
| Jul 9, 2025 | 66.75% (0.66745) | 98.43th | v4 (v2025.03.14) |
| Jul 4, 2025 | 69.79% (0.69793) | 98.57th | v4 (v2025.03.14) |
| Jul 1, 2025 | 72.56% (0.72565) | 98.70th | v4 (v2025.03.14) |
| Jun 4, 2025 | 69.79% (0.69793) | 98.56th | v4 (v2025.03.14) |
| Jun 1, 2025 | 72.56% (0.72565) | 98.69th | v4 (v2025.03.14) |
| May 4, 2025 | 69.79% (0.69793) | 98.55th | v4 (v2025.03.14) |
| May 1, 2025 | 72.56% (0.72565) | 98.68th | v4 (v2025.03.14) |
| Apr 9, 2025 | 69.79% (0.69793) | 98.56th | v4 (v2025.03.14) |
| Mar 30, 2025 | 66.75% (0.66745) | 98.42th | v4 (v2025.03.14) |
| Mar 29, 2025 | 69.19% (0.69185) | 98.14th | v4 (v2025.03.14) |
| Mar 28, 2025 | 66.75% (0.66745) | 98.42th | v4 (v2025.03.14) |
| Mar 27, 2025 | 69.19% (0.69185) | 98.48th | v4 (v2025.03.14) |
| Mar 20, 2025 | 67.21% (0.67206) | 98.48th | v4 (v2025.03.14) |
| Mar 19, 2025 | 69.62% (0.69617) | 98.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 67.21% (0.67206) | 98.43th | v4 (v2025.03.14) |
| Dec 17, 2024 | 94.25% (0.94247) | 99.39th | v3 (v2023.03.01) |
| Aug 12, 2024 | 95.73% (0.95735) | 99.47th | v3 (v2023.03.01) |
| Aug 10, 2024 | 84.45% (0.84448) | 98.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.73% (0.95735) | 99.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 45.41% (0.45409) | 98.39th | v2 (v2022.01.01) |
| Feb 4, 2022 | 45.41% (0.45409) | 97.81th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://packetstormsecurity.com/files/141017/Ticketbleed-F5-TLS-Information-Disclosure.html x_refsource_MISC
- http://www.securityfocus.com/bid/96143 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1037800 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://blog.filippo.io/finding-ticketbleed/ x_refsource_MISC
- https://filippo.io/Ticketbleed/ x_refsource_MISC
- https://github.com/0x00string/oldays/blob/master/CVE-2016-9244.py x_refsource_MISC
- https://support.f5.com/csp/article/K05121675 x_refsource_CONFIRMMitigationVendor Advisory
- https://www.exploit-db.com/exploits/41298/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/141017/Ticketbleed-F5-TLS-Information-Disclosure.html | x_refsource_MISC | |
| http://www.securityfocus.com/bid/96143 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1037800 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://blog.filippo.io/finding-ticketbleed/ | x_refsource_MISC | |
| https://filippo.io/Ticketbleed/ | x_refsource_MISC | |
| https://github.com/0x00string/oldays/blob/master/CVE-2016-9244.py | x_refsource_MISC | |
| https://support.f5.com/csp/article/K05121675 | x_refsource_CONFIRMMitigationVendor Advisory | |
| https://www.exploit-db.com/exploits/41298/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner f5
Published Feb 9, 2017
Updated Aug 6, 2024
Reserved Nov 9, 2016
Link CVE-2016-9244
CISA Vulnrichment
Updated n/a