Mozilla: Code execution through incorrect JavaScript bounds checking elimination (MFSA 2015-29)
Published Mar 24, 2015
6.8
MEDIUMCVSS 2.0
EPSS 3.68%
Description
The asm.js implementation in Mozilla Firefox before 36.0.3, Firefox ESR 31.x before 31.5.2, and SeaMonkey before 2.33.1 does not properly determine the cases in which bounds checking may be safely skipped during JIT compilation and heap access, which allows remote attackers to read or write to unintended memory locations, and consequently execute arbitrary code, via crafted JavaScript.
Affected products
No data.
- ≤ 36.0.1
- 31.0
- 31.1.0
- 31.1.1
- 31.3.0
- 31.5.1
- 31.1
- 31.2
- 31.3
- 31.4
- 31.5
- ≤ 2.33.0
No data.
Red Hat Enterprise Linux 5
firefox-0:31.5.3-1.el5_11
Fixed · RHSA-2015:0718
Red Hat Enterprise Linux 6
firefox-0:31.5.3-1.el6_6
Fixed · RHSA-2015:0718
Red Hat Enterprise Linux 7
firefox-0:31.5.3-3.ael7b_1
Fixed · RHSA-2015:0718
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:31.5.3-1.el5_11 | Fixed | RHSA-2015:0718 |
| Red Hat Enterprise Linux 6 | firefox-0:31.5.3-1.el6_6 | Fixed | RHSA-2015:0718 |
| Red Hat Enterprise Linux 7 | firefox-0:31.5.3-3.ael7b_1 | Fixed | RHSA-2015:0718 |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of thunderbird package as shipped with Red Hat Enterprise Linux 5, 6 and 7.
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:P/I:P/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 2, 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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.68% (0.03681) | 89.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.68% (0.03677) | 88.20th | v5 (v2026.06.15) |
| Nov 17, 2025 | 1.35% (0.01349) | 79.49th | v4 (v2025.03.14) |
| Jun 8, 2025 | 3.91% (0.03906) | 87.73th | v4 (v2025.03.14) |
| Apr 17, 2025 | 1.82% (0.01822) | 81.86th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.67% (0.06674) | 90.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.52% (0.14524) | 90.77th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.67% (0.06674) | 90.54th | v4 (v2025.03.14) |
| Dec 17, 2024 | 23.31% (0.23314) | 96.57th | v3 (v2023.03.01) |
| Feb 29, 2024 | 20.08% (0.20083) | 96.20th | v3 (v2023.03.01) |
| Nov 28, 2023 | 20.29% (0.20292) | 95.85th | v3 (v2023.03.01) |
| Oct 16, 2023 | 15.71% (0.15714) | 95.29th | v3 (v2023.03.01) |
| Apr 22, 2023 | 13.13% (0.13132) | 94.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 12.88% (0.12878) | 94.56th | 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) |
References (18)
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00026.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00029.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00035.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00096.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-0718.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3201 vendor-advisoryx_refsource_DEBIAN
- http://www.mozilla.org/security/announce/2015/mfsa2015-29.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/73263 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031958 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2538-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-0817 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1145255 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1204362 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-0817
- https://security.gentoo.org/glsa/201504-01 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-0817
- https://www.mozilla.org/en-US/security/advisories/mfsa2015-29
Change history (0)
No recorded changes yet.