Mozilla: Further uninitialized memory use during GIF rendering (MFSA 2014-78)
Published Oct 15, 2014
5.0
MEDIUMCVSS 2.0
EPSS 2.27%
Description
Mozilla Firefox before 33.0 does not properly initialize memory for GIF images, which allows remote attackers to obtain sensitive information from process memory via a crafted web page that triggers a sequence of rendering operations for truncated GIF data within a CANVAS element.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of firefox and thunderbird 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:L/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.27% (0.02270) | 82.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.23% (0.02226) | 80.36th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.48% (0.00485) | 63.25th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.42% (0.00424) | 75.12th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00424) | 73.61th | v3 (v2023.03.01) |
| Aug 5, 2023 | 0.42% (0.00424) | 70.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.60% (0.00601) | 75.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (17)
- http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141796.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141085.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00001.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00002.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/62022 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/62023 third-party-advisoryx_refsource_SECUNIA
- http://www.mozilla.org/security/announce/2014/mfsa2014-78.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/70431 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031028 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2372-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-1580 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1063733 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1152362 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-1580
- https://security.gentoo.org/glsa/201504-01 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-1580
Change history (0)
No recorded changes yet.