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CVE-2015-5589: php Improper Input Validation

Modified
AliasesUBUNTU-CVE-2015-5589
Published 16-05-2016Last modified 06-08-2024

Vulnerability summary

CVE-2015-5589 is a high (CVSS 10.0) Improper Input Validation vulnerability in php. EPSS estimates a 6.30% chance of exploitation in the next 30 days, higher than 93.6% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 6% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
6.30%
0%100%
Low · 0.00 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 8 · Related 4
DLA-307-1DSA-3344-1MGASA-2015-0276RHSA-2016:0457SUSE-SU-2015:1425-1SUSE-SU-2015:1466-1

Timeline

  1. 16-05-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The phar_convert_to_other function in ext/phar/phar_object.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not validate a file pointer before a close operation, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted TAR archive that is mishandled in a Phar::convertToData call.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

6.30%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

No change 0.00 pp

From 6.30% 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

Affected systems

Version check

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

Php1 product
  • phpEOL5.6.0:alpha1 | 5.6.0:alpha2 | 5.6.0:alpha3 | 5.6.0:alpha4 | 5.6.0:alpha5 | 5.6.0:beta1 | 5.6.0:beta2 | 5.6.0:beta3 | 5.6.0:beta4 | 5.6.1 | 5.6.2 | 5.6.3 | 5.6.4 | 5.6.5 | 5.6.6 | 5.6.7 | 5.6.8 | 5.6.9 | 5.6.10 | 5.5.0 | 5.5.0:alpha1 | 5.5.0:alpha2 | 5.5.0:alpha3 | 5.5.0:alpha4 | 5.5.0:alpha5 | 5.5.0:alpha6 | 5.5.0:beta1 | 5.5.0:beta2 | 5.5.0:beta3 | 5.5.0:beta4 | 5.5.0:rc1 | 5.5.0:rc2 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.5.8 | 5.5.9 | 5.5.10 | 5.5.11 | 5.5.12 | 5.5.13 | 5.5.14 | 5.5.15 | 5.5.16 | 5.5.17 | 5.5.18 | 5.5.19 | 5.5.20 | 5.5.21 | 5.5.22 | 5.5.23 | 5.5.24 | 5.5.25 | 5.5.26 | ≤ 5.4.42
Ubuntu1 product
  • php5< 5.5.9+dfsg-1ubuntu4.13

2 vendors · 2 products

References

10 links