nspr: heap-buffer overflow in PL_ARENA_ALLOCATE (MFSA 2015-133)
Published Nov 5, 2015
7.5
HIGHCVSS 2.0
EPSS 6.79%
Description
Integer overflow in the PL_ARENA_ALLOCATE implementation in Netscape Portable Runtime (NSPR) in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors.
Affected products
No data.
Configuration 2
- ≤ 3.19.2.0
- 3.20.0
Configuration 3
No data.
Red Hat Enterprise Linux 5
nspr-0:4.10.8-2.el5_11
Fixed · RHSA-2015:1980
Red Hat Enterprise Linux 5
nss-0:3.19.1-2.el5_11
Fixed · RHSA-2015:1980
Red Hat Enterprise Linux 6
nspr-0:4.10.8-2.el6_7
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 6
nss-0:3.19.1-5.el6_7
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 6
nss-util-0:3.19.1-2.el6_7
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 6.2 Advanced Update Support
nspr-0:4.8.9-6.el6_2
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.2 Advanced Update Support
nss-0:3.13.1-12.el6_2
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.2 Advanced Update Support
nss-util-0:3.13.1-9.el6_2
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.4 Advanced Update Support
nspr-0:4.9.5-5.el6_4
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.4 Advanced Update Support
nss-0:3.14.3-9.el6_4
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.4 Advanced Update Support
nss-util-0:3.14.3-7.el6_4
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.5 Extended Update Support
nspr-0:4.10.6-2.el6_5
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.5 Extended Update Support
nss-0:3.16.1-9.el6_5
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.5 Extended Update Support
nss-util-0:3.16.1-3.el6_5
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.6 Extended Update Support
nspr-0:4.10.8-2.el6_6
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.6 Extended Update Support
nss-0:3.19.1-4.el6_6
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 6.6 Extended Update Support
nss-util-0:3.19.1-2.el6_6
Fixed · RHSA-2015:2068
Red Hat Enterprise Linux 7
nspr-0:4.10.8-2.ael7b_1
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 7
nss-0:3.19.1-7.ael7b_1.2
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 7
nss-util-0:3.19.1-4.ael7b_1
Fixed · RHSA-2015:1981
Red Hat Enterprise Linux 4
nspr
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | nspr-0:4.10.8-2.el5_11 | Fixed | RHSA-2015:1980 |
| Red Hat Enterprise Linux 5 | nss-0:3.19.1-2.el5_11 | Fixed | RHSA-2015:1980 |
| Red Hat Enterprise Linux 6 | nspr-0:4.10.8-2.el6_7 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 6 | nss-0:3.19.1-5.el6_7 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 6 | nss-util-0:3.19.1-2.el6_7 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | nspr-0:4.8.9-6.el6_2 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | nss-0:3.13.1-12.el6_2 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | nss-util-0:3.13.1-9.el6_2 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | nspr-0:4.9.5-5.el6_4 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | nss-0:3.14.3-9.el6_4 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | nss-util-0:3.14.3-7.el6_4 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | nspr-0:4.10.6-2.el6_5 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | nss-0:3.16.1-9.el6_5 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | nss-util-0:3.16.1-3.el6_5 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.6 Extended Update Support | nspr-0:4.10.8-2.el6_6 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.6 Extended Update Support | nss-0:3.19.1-4.el6_6 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 6.6 Extended Update Support | nss-util-0:3.19.1-2.el6_6 | Fixed | RHSA-2015:2068 |
| Red Hat Enterprise Linux 7 | nspr-0:4.10.8-2.ael7b_1 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 7 | nss-0:3.19.1-7.ael7b_1.2 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 7 | nss-util-0:3.19.1-4.ael7b_1 | Fixed | RHSA-2015:1981 |
| Red Hat Enterprise Linux 4 | nspr | Will not fix | 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:L/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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.79% (0.06792) | 93.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.85% (0.06848) | 93.18th | v5 (v2026.06.15) |
| Feb 21, 2026 | 5.02% (0.05021) | 89.53th | v4 (v2025.03.14) |
| Feb 19, 2026 | 9.61% (0.09612) | 92.72th | v4 (v2025.03.14) |
| Jan 25, 2026 | 18.58% (0.18580) | 95.06th | v4 (v2025.03.14) |
| Jan 20, 2026 | 20.28% (0.20284) | 95.33th | v4 (v2025.03.14) |
| Jun 27, 2025 | 18.19% (0.18188) | 94.87th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.43% (0.20434) | 95.07th | v4 (v2025.03.14) |
| Mar 29, 2025 | 36.20% (0.36199) | 95.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.43% (0.20434) | 95.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 5.95% (0.05948) | 93.74th | v3 (v2023.03.01) |
| Jul 12, 2024 | 5.95% (0.05948) | 93.53th | v3 (v2023.03.01) |
| Mar 10, 2024 | 5.72% (0.05717) | 93.15th | v3 (v2023.03.01) |
| Feb 4, 2024 | 6.81% (0.06807) | 93.23th | v3 (v2023.03.01) |
| Dec 4, 2023 | 8.96% (0.08957) | 93.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.77% (0.08774) | 93.49th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (40)
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00020.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00021.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00037.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00049.html vendor-advisoryx_refsource_SUSE
- http://packetstormsecurity.com/files/134268/Slackware-Security-Advisory-mozilla-nss-Updates.html x_refsource_MISC
- http://rhn.redhat.com/errata/RHSA-2015-1980.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1981.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3393 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3406 vendor-advisoryx_refsource_DEBIAN
- http://www.mozilla.org/security/announce/2015/mfsa2015-133.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html x_refsource_CONFIRM
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- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/77415 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/91787 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034069 vdb-entryx_refsource_SECTRACK
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.399753 vendor-advisoryx_refsource_SLACKWARE
- http://www.ubuntu.com/usn/USN-2785-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2790-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2819-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/articles/2043623
- https://access.redhat.com/security/cve/CVE-2015-7183 Vendor Advisory
- https://bto.bluecoat.com/security-advisory/sa119 x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1205157 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1269353 Issue Tracking
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.19.2.1_release_notes x_refsource_CONFIRMVendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.19.4_release_notes x_refsource_CONFIRMVendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.20.1_release_notes x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-7183
- https://security.gentoo.org/glsa/201512-10 vendor-advisoryx_refsource_GENTOO
- https://security.gentoo.org/glsa/201605-06 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-7183
- https://www.mozilla.org/security/announce/2015/mfsa2015-133.html
Change history (0)
No recorded changes yet.