CVE-2013-4248: canonical ubuntu_linux Improper Input Validation

Modified

AliasesMGASA-2013-0264DSA-2742-1

Published 18-08-2013Last modified 06-08-2024

Vulnerability summary

CVE-2013-4248 is a medium (CVSS 4.3) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 3.33% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

4.3/10

010

Medium · v2.0 (NVD)

EPSS score

3.33%

0%100%

Low · -0.26 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3

OPENSUSE-SU-2024:10290-1 OPENSUSE-SU-2024:10344-1 OPENSUSE-SU-2024:11169-1 RHSA-2013:1307 RHSA-2013:1615

Timeline

18-08-2013
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

The openssl_x509_parse function in openssl.c in the OpenSSL module in PHP before 5.4.18 and 5.5.x before 5.5.2 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

CVSS metrics

1 score · 1 source · 1 version

v2.04.3

EPSS trend

Probability

3.33%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

Decrease -0.26 pp

From 3.59% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Mageia4 products

php< 5.3.27-1.2.mga2
php< 5.4.19-1.1.mga3
php-apc< 3.1.14-7.3.mga3
php-gd-bundled< 5.4.19-1.mga3

Canonical1 product

ubuntu_linuxEOL10.04 | 12.04 | 12.10 | 13.04

Debian1 product

php5< 5.3.3-7+squeeze17 | < 5.4.4-14+deb7u4

Php1 product

phpEOL≤ 5.4.17 | 5.0.0 | 5.0.0:beta1 | 5.0.0:beta2 | 5.0.0:beta3 | 5.0.0:beta4 | 5.0.0:rc1 | 5.0.0:rc2 | 5.0.0:rc3 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.3 | 5.1.4 | 5.1.5 | 5.1.6 | 5.2.0 | 5.2.1 | 5.2.2 | 5.2.3 | 5.2.4 | 5.2.5 | 5.2.6 | 5.2.7 | 5.2.8 | 5.2.9 | 5.2.10 | 5.2.11 | 5.2.12 | 5.2.13 | 5.2.14 | 5.2.15 | 5.2.16 | 5.2.17 | 5.3.0 | 5.3.1 | 5.3.2 | 5.3.3 | 5.3.4 | 5.3.5 | 5.3.6 | 5.3.7 | 5.3.8 | 5.3.9 | 5.3.10 | 5.3.11 | 5.3.12 | 5.3.13 | 5.3.14 | 5.3.15 | 5.3.16 | 5.3.17 | 5.3.18 | 5.3.19 | 5.3.20 | 5.3.21 | 5.3.22 | 5.3.23 | 5.3.24 | 5.3.25 | 5.3.26 | 5.3.27 | 5.4.0 | 5.4.1 | 5.4.2 | 5.4.3 | 5.4.4 | 5.4.5 | 5.4.6 | 5.4.7 | 5.4.8 | 5.4.9 | 5.4.10 | 5.4.11 | 5.4.12 | 5.4.12:rc1 | 5.4.12:rc2 | 5.4.13 | 5.4.13:rc1 | 5.4.14 | 5.4.14:rc1 | 5.4.15:rc1 | 5.4.16:rc1 | 5.5.0 | 5.5.1

Redhat1 product