SSL/TLS CRIME attack against HTTPS
Published Sep 15, 2012
2.6
LOWCVSS 2.0
EPSS 4.35%
Description
The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.
Affected products
No data.
Configuration 1
- 7.0
- 8.0
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.4-20130306.2.el6_4
Fixed · RHSA-2013:0636
RHEV Manager version 3.3
spice-client-msi-0:3.3-12
Fixed · RHSA-2014:0416
Red Hat Enterprise Linux 5
openssl-0:0.9.8e-26.el5_9.1
Fixed · RHSA-2013:0587
Red Hat Enterprise Linux 6
openssl-0:1.0.0-27.el6_4.2
Fixed · RHSA-2013:0587
Red Hat Enterprise Linux 4
gnutls
Will not fix
Red Hat Enterprise Linux 4
nss
Not affected
Red Hat Enterprise Linux 4
openssl
Not affected
Red Hat Enterprise Linux 5
gnutls
Will not fix
Red Hat Enterprise Linux 5
nss
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
gnutls
Will not fix
Red Hat Enterprise Linux 6
nss
Not affected
Red Hat Enterprise Linux 6
openssl098e
Will not fix
Red Hat JBoss Enterprise Application Platform 6
openssl
Not affected
Red Hat JBoss Enterprise Web Server 1
openssl
Not affected
Red Hat JBoss Enterprise Web Server 2
openssl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.4-20130306.2.el6_4 | Fixed | RHSA-2013:0636 |
| RHEV Manager version 3.3 | spice-client-msi-0:3.3-12 | Fixed | RHSA-2014:0416 |
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8e-26.el5_9.1 | Fixed | RHSA-2013:0587 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.0-27.el6_4.2 | Fixed | RHSA-2013:0587 |
| Red Hat Enterprise Linux 4 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 4 | nss | Not affected | n/a |
| Red Hat Enterprise Linux 4 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | nss | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | nss | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Not affected | n/a |
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.
AV:N/AC:H/Au:N/C:P/I:N/A:N
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 (42 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.35% (0.04346) | 90.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.27% (0.04266) | 89.76th | v5 (v2026.06.15) |
| May 17, 2026 | 8.99% (0.08993) | 92.69th | v4 (v2025.03.14) |
| Apr 10, 2026 | 13.87% (0.13867) | 94.30th | v4 (v2025.03.14) |
| Mar 4, 2026 | 15.29% (0.15291) | 94.48th | v4 (v2025.03.14) |
| Mar 1, 2026 | 21.75% (0.21753) | 95.66th | v4 (v2025.03.14) |
| Feb 4, 2026 | 15.29% (0.15291) | 94.44th | v4 (v2025.03.14) |
| Feb 1, 2026 | 21.75% (0.21753) | 95.62th | v4 (v2025.03.14) |
| Jan 20, 2026 | 15.63% (0.15635) | 94.48th | v4 (v2025.03.14) |
| Jan 8, 2026 | 14.19% (0.14186) | 94.16th | v4 (v2025.03.14) |
| Jan 4, 2026 | 13.14% (0.13137) | 93.88th | v4 (v2025.03.14) |
| Jan 3, 2026 | 18.88% (0.18877) | 95.13th | v4 (v2025.03.14) |
| Jan 1, 2026 | 23.48% (0.23484) | 95.83th | v4 (v2025.03.14) |
| Dec 4, 2025 | 13.14% (0.13137) | 93.84th | v4 (v2025.03.14) |
| Dec 1, 2025 | 23.95% (0.23950) | 95.84th | v4 (v2025.03.14) |
| Nov 4, 2025 | 13.14% (0.13137) | 93.81th | v4 (v2025.03.14) |
| Nov 1, 2025 | 23.48% (0.23484) | 95.77th | v4 (v2025.03.14) |
| Oct 4, 2025 | 13.87% (0.13867) | 94.05th | v4 (v2025.03.14) |
| Oct 1, 2025 | 24.90% (0.24898) | 95.98th | v4 (v2025.03.14) |
| Sep 4, 2025 | 13.87% (0.13867) | 94.06th | v4 (v2025.03.14) |
| Sep 1, 2025 | 24.90% (0.24898) | 95.98th | v4 (v2025.03.14) |
| Aug 4, 2025 | 13.87% (0.13867) | 94.02th | v4 (v2025.03.14) |
| Aug 1, 2025 | 24.90% (0.24898) | 95.96th | v4 (v2025.03.14) |
| Jul 4, 2025 | 13.14% (0.13137) | 93.79th | v4 (v2025.03.14) |
| Jul 1, 2025 | 23.48% (0.23484) | 95.73th | v4 (v2025.03.14) |
| Jun 4, 2025 | 13.14% (0.13137) | 93.73th | v4 (v2025.03.14) |
| Jun 1, 2025 | 23.48% (0.23484) | 95.69th | v4 (v2025.03.14) |
| May 4, 2025 | 13.87% (0.13867) | 93.89th | v4 (v2025.03.14) |
| May 1, 2025 | 24.90% (0.24898) | 95.84th | v4 (v2025.03.14) |
| Mar 30, 2025 | 13.87% (0.13867) | 93.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 63.98% (0.63978) | 97.79th | v4 (v2025.03.14) |
| Mar 28, 2025 | 13.87% (0.13867) | 93.70th | v4 (v2025.03.14) |
| Mar 27, 2025 | 63.98% (0.63978) | 98.21th | v4 (v2025.03.14) |
| Mar 20, 2025 | 55.70% (0.55697) | 97.91th | v4 (v2025.03.14) |
| Mar 19, 2025 | 63.98% (0.63978) | 98.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 55.70% (0.55697) | 97.85th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00232) | 62.19th | v3 (v2023.03.01) |
| Apr 15, 2024 | 0.23% (0.00232) | 60.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00163) | 51.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 18.01% (0.18006) | 96.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 18.01% (0.18006) | 95.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 18.01% (0.18006) | 93.41th | v2 (v2022.01.01) |
References (37)
- http://arstechnica.com/security/2012/09/crime-hijacks-https-sessions/ x_refsource_MISC
- http://code.google.com/p/chromium/issues/detail?id=139744 x_refsource_CONFIRM
- http://isecpartners.com/blog/2012/9/14/details-on-the-crime-attack.html x_refsource_MISC
- http://jvn.jp/en/jp/JVN65273415/index.html third-party-advisoryx_refsource_JVN
- http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000129.html third-party-advisoryx_refsource_JVNDB
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101366.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2012-10/msg00096.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00034.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00048.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=136612293908376&w=2 vendor-advisoryx_refsource_HP
- http://news.ycombinator.com/item?id=4510829 x_refsource_MISC
- http://rhn.redhat.com/errata/RHSA-2013-0587.html vendor-advisoryx_refsource_REDHAT
- http://security.stackexchange.com/questions/19911/crime-how-to-beat-the-beast-successor x_refsource_MISC
- http://support.apple.com/kb/HT5784 x_refsource_CONFIRM
- http://threatpost.com/en_us/blogs/crime-attack-uses-compression-ratio-tls-requests-side-channel-hijack-secure-sessions-091312 x_refsource_MISC
- http://threatpost.com/en_us/blogs/new-attack-uses-ssltls-information-leak-hijack-https-sessions-090512 x_refsource_MISC
- http://www.debian.org/security/2012/dsa-2579 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2013/dsa-2627 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3253 vendor-advisoryx_refsource_DEBIAN
- http://www.ekoparty.org/2012/thai-duong.php x_refsource_MISC
- http://www.iacr.org/cryptodb/data/paper.php?pubkey=3091 x_refsource_MISC
- http://www.securityfocus.com/bid/55704 vdb-entryx_refsource_BID
- http://www.theregister.co.uk/2012/09/14/crime_tls_attack/ x_refsource_MISC
- http://www.ubuntu.com/usn/USN-1627-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1628-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1898-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-4929 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=857051 x_refsource_CONFIRMIssue Tracking
- https://chromiumcodereview.appspot.com/10825183 x_refsource_CONFIRM
- https://community.qualys.com/blogs/securitylabs/2012/09/14/crime-information-leakage-attack-against-ssltls x_refsource_MISC
- https://gist.github.com/3696912 x_refsource_MISC
- https://github.com/mpgn/CRIME-poc x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2012-4929
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18920 vdb-entrysignaturex_refsource_OVAL
- https://threatpost.com/en_us/blogs/demo-crime-tls-attack-091212 x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2012-4929
Change history (0)
No recorded changes yet.