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Fencer Intel
high 7.5

CVE-2015-7183 json

Integer overflow in the PL_ARENA_ALLOCATE implementation in Netscape Portable Runtime (NSPR) in Mozilla Network Security Services (NSS) bef…

published 2015-11-05 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-7115

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.8%
EPSS 6.8% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

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.

Patch / fix

  • nspr Debian 14, Debian 13, Debian 12 2:4.10.10-1

debian advisories DEBIAN-CVE-2015-7183

  • nspr Ubuntu 14.04 LTS 2:4.10.10-0ubuntu0.14.04.1
  • firefox Ubuntu 14.04 LTS 42.0+build2-0ubuntu0.14.04.1
  • firefox Ubuntu 16.04 LTS 42.0+build2-0ubuntu1
  • virtualbox Ubuntu 14.04 LTS 4.3.36-dfsg-1+deb8u1ubuntu1.14.04.1
  • thunderbird Ubuntu 14.04 LTS 1:38.4.0+build3-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-7183

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nspr RHEL 6 4.10.8-2.el6_7
  • nspr RHEL 7 4.10.8-2.el7_1
  • nspr RHEL 7 4.10.8-2.ael7b_1
  • nss RHEL 6 3.19.1-5.el6_7
  • nss RHEL 7 3.19.1-7.el7_1.2
  • nss RHEL 7 3.19.1-7.ael7b_1.2
  • nss-util RHEL 6 3.19.1-2.el6_7
  • nss-util RHEL 7 3.19.1-4.el7_1

red hat advisories RHSA-2015:2068RHSA-2015:1981RHSA-2015:1980

  • mozilla-nss SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +6 more 3.19.2.1-19.3
  • mozilla-nspr SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +7 more 4.10.10-16.1
  • MozillaFirefox SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +6 more 38.4.0esr-25.6
  • MozillaFirefox-branding-SLED SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +4 more 38-15.31
  • mozilla-nss SLES for SAP 12, SLES 12, SLED 12 +1 more 3.19.2.1-29.1
  • mozilla-nspr SLES for SAP 12, SLES 12, SLED 12 +1 more 4.10.10-9.1
  • MozillaFirefox SLES for SAP 12, SLES 12, SLED 12 +1 more 38.4.0esr-51.1
  • MozillaFirefox-branding-SLE SLES for SAP 12, SLES 12, SLED 12 31.0-17.1

suse advisories SUSE-SU-2015:1981-1SUSE-SU-2015:1978-1SUSE-SU-2015:1926-1

  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1
  • mozilla-nspr openSUSE Tumbleweed 4.12-2.1

opensuse advisories openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1openSUSE-SU-2024:10297-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-7183 updated cvss 6.8

nspr: heap-buffer overflow in PL_ARENA_ALLOCATE (MFSA 2015-133)

  • Red Hat Enterprise Linux 4 nspr
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) nss 3.19.1-2.el5_11, nspr 4.10.8-2.el5_11, nss-tools 3.19.1-2.el5_11
    fixed: vendor fix RHSA-2015:1980
  • Red Hat Enterprise Linux Client (v. 7) nspr 4.10.8-2.el7_1, nss 3.19.1-7.el7_1.2, nss-util 3.19.1-4.el7_1, nss-tools 3.19.1-7.el7_1.2, nss-sysinit 3.19.1-7.el7_1.2 Red Hat Enterprise Linux Client Optional (v. 7) nspr-devel 4.10.8-2.el7_1, nss-devel 3.19.1-7.el7_1.2, nspr-debuginfo 4.10.8-2.el7_1, nss-util-devel 3.19.1-4.el7_1, nss-debuginfo 3.19.1-7.el7_1.2, nss-pkcs11-devel 3.19.1-7.el7_1.2, +1 more
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) nss 3.16.1-9.el6_5, nspr 4.10.6-2.el6_5, nss-util 3.16.1-3.el6_5
    fixed: vendor fix RHSA-2015:2068
  • Red Hat Enterprise Linux ComputeNode (v. 7) nspr 4.10.8-2.el7_1, nss 3.19.1-7.el7_1.2, nss-util 3.19.1-4.el7_1, nss-tools 3.19.1-7.el7_1.2, nss-sysinit 3.19.1-7.el7_1.2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) nspr-devel 4.10.8-2.el7_1, nss-devel 3.19.1-7.el7_1.2, nspr-debuginfo 4.10.8-2.el7_1, nss-util-devel 3.19.1-4.el7_1, nss-debuginfo 3.19.1-7.el7_1.2, nss-pkcs11-devel 3.19.1-7.el7_1.2, +1 more
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.19.1-2.el5_11, nspr 4.10.8-2.el5_11, nss-tools 3.19.1-2.el5_11
    fixed: vendor fix RHSA-2015:1980
  • Red Hat Enterprise Linux Desktop (v. 6) nss 3.19.1-5.el6_7, nspr 4.10.8-2.el6_7, nss-util 3.19.1-2.el6_7, nss-tools 3.19.1-5.el6_7, nss-sysinit 3.19.1-5.el6_7 Red Hat Enterprise Linux Desktop Optional (v. 6) nss-devel 3.19.1-5.el6_7, nspr-devel 4.10.8-2.el6_7, nss-debuginfo 3.19.1-5.el6_7, nspr-debuginfo 4.10.8-2.el6_7, nss-util-devel 3.19.1-2.el6_7, nss-pkcs11-devel 3.19.1-5.el6_7, +1 more
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.19.1-2.el5_11, nspr 4.10.8-2.el5_11
    fixed: vendor fix RHSA-2015:1980
show 9 more
  • Red Hat Enterprise Linux HPC Node (v. 6) nss 3.19.1-5.el6_7, nspr 4.10.8-2.el6_7, nss-util 3.19.1-2.el6_7, nss-tools 3.19.1-5.el6_7, nss-sysinit 3.19.1-5.el6_7
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.5) nss 3.16.1-9.el6_5, nspr 4.10.6-2.el6_5, nss-util 3.16.1-3.el6_5, nss-tools 3.16.1-9.el6_5, nss-sysinit 3.16.1-9.el6_5 Red Hat Enterprise Linux HPC Node EUS (v. 6.6) nss 3.19.1-4.el6_6, nspr 4.10.8-2.el6_6, nss-util 3.19.1-2.el6_6, nss-tools 3.19.1-4.el6_6, nss-sysinit 3.19.1-4.el6_6
    fixed: vendor fix RHSA-2015:2068
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) nss-devel 3.19.1-5.el6_7, nspr-devel 4.10.8-2.el6_7, nss-debuginfo 3.19.1-5.el6_7, nspr-debuginfo 4.10.8-2.el6_7, nss-util-devel 3.19.1-2.el6_7, nss-pkcs11-devel 3.19.1-5.el6_7, +1 more
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) nss-devel 3.19.1-4.el6_6, nspr-devel 4.10.8-2.el6_6, nss-debuginfo 3.19.1-4.el6_6, nspr-debuginfo 4.10.8-2.el6_6, nss-util-devel 3.19.1-2.el6_6, nss-pkcs11-devel 3.19.1-4.el6_6, +1 more
    fixed: vendor fix RHSA-2015:2068
  • Red Hat Enterprise Linux Server (v. 6) nss 3.19.1-5.el6_7, nspr 4.10.8-2.el6_7, nss-util 3.19.1-2.el6_7, nss-tools 3.19.1-5.el6_7, nss-sysinit 3.19.1-5.el6_7 Red Hat Enterprise Linux Server (v. 7) nspr 4.10.8-2.el7_1, nss 3.19.1-7.el7_1.2, nspr 4.10.8-2.ael7b_1, nss 3.19.1-7.ael7b_1.2, nss-util 3.19.1-4.el7_1, nss-util 3.19.1-4.ael7b_1, +4 more
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux Server AUS (v. 6.2) nspr 4.8.9-6.el6_2, nss 3.13.1-12.el6_2, nss-util 3.13.1-9.el6_2, nss-tools 3.13.1-12.el6_2, nss-sysinit 3.13.1-12.el6_2 Red Hat Enterprise Linux Server AUS (v. 6.4) nspr 4.9.5-5.el6_4, nss 3.14.3-9.el6_4, nss-util 3.14.3-7.el6_4, nss-tools 3.14.3-9.el6_4, nss-sysinit 3.14.3-9.el6_4 Red Hat Enterprise Linux Server EUS (v. 6.5) nss 3.16.1-9.el6_5, nspr 4.10.6-2.el6_5, nss-util 3.16.1-3.el6_5, nss-tools 3.16.1-9.el6_5, nss-sysinit 3.16.1-9.el6_5 Red Hat Enterprise Linux Server EUS (v. 6.6) nss 3.19.1-4.el6_6, nspr 4.10.8-2.el6_6, nss-util 3.19.1-2.el6_6, nss-tools 3.19.1-4.el6_6, nss-sysinit 3.19.1-4.el6_6
    fixed: vendor fix RHSA-2015:2068
  • Red Hat Enterprise Linux Server Optional (v. 6) nss-debuginfo 3.19.1-5.el6_7, nss-pkcs11-devel 3.19.1-5.el6_7 Red Hat Enterprise Linux Server Optional (v. 7) nss-debuginfo 3.19.1-7.el7_1.2, nss-debuginfo 3.19.1-7.ael7b_1.2, nss-pkcs11-devel 3.19.1-7.el7_1.2, nss-pkcs11-devel 3.19.1-7.ael7b_1.2
    fixed: vendor fix RHSA-2015:1981
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) nss 3.13.1-12.el6_2 Red Hat Enterprise Linux Server Optional AUS (v. 6.4) nss 3.14.3-9.el6_4 Red Hat Enterprise Linux Server Optional EUS (v. 6.5) nss 3.16.1-9.el6_5 Red Hat Enterprise Linux Server Optional EUS (v. 6.6) nss-debuginfo 3.19.1-4.el6_6, nss-pkcs11-devel 3.19.1-4.el6_6
    fixed: vendor fix RHSA-2015:2068
  • Red Hat Enterprise Linux Workstation (v. 6) nss 3.19.1-5.el6_7, nspr 4.10.8-2.el6_7, nss-util 3.19.1-2.el6_7, nss-tools 3.19.1-5.el6_7, nss-sysinit 3.19.1-5.el6_7 Red Hat Enterprise Linux Workstation (v. 7) nspr 4.10.8-2.el7_1, nss 3.19.1-7.el7_1.2, nss-util 3.19.1-4.el7_1, nss-tools 3.19.1-7.el7_1.2, nss-sysinit 3.19.1-7.el7_1.2 Red Hat Enterprise Linux Workstation Optional (v. 6) nss-debuginfo 3.19.1-5.el6_7, nss-pkcs11-devel 3.19.1-5.el6_7 Red Hat Enterprise Linux Workstation Optional (v. 7) nss-debuginfo 3.19.1-7.el7_1.2, nss-pkcs11-devel 3.19.1-7.el7_1.2
    fixed: vendor fix RHSA-2015:1981

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.79% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-189 Numeric Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.