ICU: Uninitialized memory read fixed in Chrome 44.0.2403.89
Published Jul 23, 2015
6.8
MEDIUMCVSS 2.0
EPSS 2.73%
Description
The ucnv_io_getConverterName function in common/ucnv_io.cpp in International Components for Unicode (ICU), as used in Google Chrome before 44.0.2403.89, mishandles converter names with initial x- substrings, which allows remote attackers to cause a denial of service (read of uninitialized memory) or possibly have unspecified other impact via a crafted file.
Affected products
No data.
Configuration 2
Configuration 4
- 8.0
No data.
Red Hat Enterprise Linux 6 Supplementary
chromium-browser-0:44.0.2403.89-1.el6
Fixed · RHSA-2015:1499
Red Hat Enterprise Linux 5
icu
Not affected
Red Hat Enterprise Linux 6
icu
Not affected
Red Hat Enterprise Linux 7
icu
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 Supplementary | chromium-browser-0:44.0.2403.89-1.el6 | Fixed | RHSA-2015:1499 |
| Red Hat Enterprise Linux 5 | icu | Not affected | n/a |
| Red Hat Enterprise Linux 6 | icu | Not affected | n/a |
| Red Hat Enterprise Linux 7 | icu | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of icu as shipped with Red Hat Enterprise Linux 5 and 6. This issue affects the versions of icu as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Low security impact.
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 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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.73% (0.02732) | 85.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.73% (0.02732) | 84.12th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.93% (0.00934) | 74.07th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.32% (0.02319) | 74.63th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.93% (0.00934) | 74.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.82% (0.03818) | 92.23th | v3 (v2023.03.01) |
| Nov 8, 2023 | 3.82% (0.03818) | 90.87th | v3 (v2023.03.01) |
| May 14, 2023 | 2.02% (0.02018) | 87.18th | v3 (v2023.03.01) |
| Mar 9, 2023 | 1.75% (0.01750) | 85.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.20% (0.01199) | 82.98th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.41% (0.03407) | 84.65th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.41% (0.03407) | 83.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.41% (0.03407) | 66.20th | v2 (v2022.01.01) |
References (17)
- http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00038.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1499.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3315 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3360 vendor-advisoryx_refsource_DEBIAN
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/75973 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033031 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2740-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-1270 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1245574 Issue Tracking
- https://chromium.googlesource.com/chromium/deps/icu/+/f1ad7f9ba957571dc692ea3e187612c685615e19 x_refsource_CONFIRM
- https://code.google.com/p/chromium/issues/detail?id=444573 x_refsource_CONFIRM
- https://codereview.chromium.org/1157143002/ x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-1270
- https://security.gentoo.org/glsa/201603-09 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-1270
Change history (0)
No recorded changes yet.