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medium 6.4

CVE-2015-1473 json

The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka glibc or libc6) before 2.21 does not properly consider data-type size du…

published 11y ago modified 4mo ago also EUVD-2015-1608

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka glibc or libc6) before 2.21 does not properly consider data-type size during a risk-management decision for use of the alloca function, which might allow context-dependent attackers to cause a denial of service (segmentation violation) or overwrite memory locations beyond the stack boundary via a long line containing wide characters that are improperly handled in a wscanf call.

Patch / fix

  • glibc Debian 14, Debian 13, Debian 12 2.19-15

debian advisories DEBIAN-CVE-2015-1473

  • eglibc Ubuntu 14.04 LTS 2.19-0ubuntu6.6

ubuntu advisories UBUNTU-CVE-2015-1473

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

  • glibc RHEL 7 2.17-105.el7
  • nscd RHEL 7 2.17-105.el7
  • glibc-utils RHEL 7 2.17-105.el7
  • glibc-common RHEL 7 2.17-105.el7
  • glibc-debuginfo-common RHEL 7 2.17-105.el7
  • glibc RHEL 7.1 EUS 2.17-79.el7_1
  • glibc RHEL 7.1 EUS 2.17-79.ael7b_1
  • nscd RHEL 7.1 EUS 2.17-79.el7_1

red hat advisories RHSA-2015:2589RHSA-2015:2199

  • glibc openSUSE Tumbleweed 2.24-2.3

opensuse advisories openSUSE-SU-2024:10154-1

  • dietlibc Azure Linux 3.0 0.34-7

azure linux advisories AZL-40934

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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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-2015-1473 updated cvss 2.6

glibc: Stack-overflow in glibc swscanf

  • Red Hat Enterprise Linux Client (v. 7) nscd 2.17-105.el7, glibc 2.17-105.el7, glibc-utils 2.17-105.el7, glibc-common 2.17-105.el7, glibc-debuginfo-common 2.17-105.el7 Red Hat Enterprise Linux Client Optional (v. 7) glibc-debuginfo-common 2.17-105.el7 Red Hat Enterprise Linux ComputeNode (v. 7) nscd 2.17-105.el7, glibc 2.17-105.el7, glibc-utils 2.17-105.el7, glibc-common 2.17-105.el7, glibc-debuginfo-common 2.17-105.el7
    fixed: vendor fix RHSA-2015:2199
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) nscd 2.17-79.el7_1, glibc 2.17-79.el7_1, glibc-utils 2.17-79.el7_1, glibc-common 2.17-79.el7_1, glibc-debuginfo-common 2.17-79.el7_1
    fixed: vendor fix RHSA-2015:2589
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-debuginfo-common 2.17-105.el7
    fixed: vendor fix RHSA-2015:2199
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) glibc-debuginfo-common 2.17-79.el7_1
    fixed: vendor fix RHSA-2015:2589
  • Red Hat Enterprise Linux Server (v. 7) nscd 2.17-105.el7, glibc 2.17-105.el7, glibc-utils 2.17-105.el7, glibc-common 2.17-105.el7, glibc-debuginfo-common 2.17-105.el7
    fixed: vendor fix RHSA-2015:2199
  • Red Hat Enterprise Linux Server EUS (v. 7.1) nscd 2.17-79.el7_1, glibc 2.17-79.el7_1, nscd 2.17-79.ael7b_1, glibc 2.17-79.ael7b_1, glibc-utils 2.17-79.el7_1, glibc-common 2.17-79.el7_1, +4 more
    fixed: vendor fix RHSA-2015:2589
  • Red Hat Enterprise Linux Server Optional (v. 7) glibc-debuginfo-common 2.17-105.el7
    fixed: vendor fix RHSA-2015:2199
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.1) glibc-debuginfo-common 2.17-79.el7_1, glibc-debuginfo-common 2.17-79.ael7b_1
    fixed: vendor fix RHSA-2015:2589
show 2 more
  • Red Hat Enterprise Linux Workstation (v. 7) nscd 2.17-105.el7, glibc 2.17-105.el7, glibc-utils 2.17-105.el7, glibc-common 2.17-105.el7, glibc-debuginfo-common 2.17-105.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-debuginfo-common 2.17-105.el7
    fixed: vendor fix RHSA-2015:2199
  • Red Hat Enterprise Linux 5 glibc Red Hat Enterprise Linux 6 nscd, glibc, glibc-utils, glibc-common
    not affected: vulnerable code not present

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

2.13% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

Classification

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

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.