CVE-2019-9020: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2019-9020 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 10.06% chance of exploitation in the next 30 days, higher than 95.6% of scored vulnerabilities. 2 public exploits are recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 15 · Related 10Timeline
- 22-02-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. Invalid input to the function xmlrpc_decode() can lead to an invalid memory access (heap out of bounds read or read after free). This is related to xml_elem_parse_buf in ext/xmlrpc/libxmlrpc/xml_element.c.
CVSS metrics
4 scores · 3 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
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
10.06%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 10.06% 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
2 foundExploit Reference (bugs.php.net)
Maturity: unknown
Exploit Reference (bugs.php.net)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu3 products
- php5< 5.5.9+dfsg-1ubuntu4.27
- php7.0< 7.0.33-0ubuntu0.16.04.2
- php7.2< 7.2.15-0ubuntu0.18.04.1
Alpine1 product
- php7< 7.2.14-r0 | < 7.2.17-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04
Debian1 product
- debian_linuxEOL9.0
Netapp1 product
Opensuse1 product
- leapEOL42.3
Php1 product
- php< 5.6.40 | ≥ 7.0.0, < 7.1.26 | ≥ 7.2.0, < 7.2.14 | ≥ 7.3.0, < 7.3.1
7 vendors · 9 products
References
18 links
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory