CVE-2015-4643: debian debian_linux
Vulnerability summary
CVE-2015-4643 is a critical (CVSS 9.8) vulnerability in debian debian_linux. EPSS estimates a 15.41% chance of exploitation in the next 30 days, higher than 96.7% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 4Timeline
- 16-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Integer overflow in the ftp_genlist function in ext/ftp/ftp.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 allows remote FTP servers to execute arbitrary code via a long reply to a LIST command, leading to a heap-based buffer overflow. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-4022.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
15.41%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
Decrease -0.91 pp
From 16.32% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (bugs.php.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat6 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus6.6 | 7.3 | 7.4 | 7.6
- enterprise_linux_server_eus6.6 | 7.1 | 7.2 | 7.3 | 7.4 | 7.5 | 7.6
- enterprise_linux_server_tus6.6 | 7.3 | 7.6
Debian1 product
- debian_linuxEOL7.0 | 8.0
Oracle1 product
- linuxEOL6 | 7:0
Php1 product
- php< 5.4.42 | ≥ 5.5.0, < 5.5.26 | ≥ 5.6.0, < 5.6.10
Ubuntu1 product
- php5< 5.5.9+dfsg-1ubuntu4.11
5 vendors · 10 products
References
17 links
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRMThird Party Advisory