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Fencer Intel
medium 6.5

CVE-2020-7061 json

heap-buffer-overflow in phar_extract_file

published 6y ago modified 2mo ago also BIT-libphp-2020-7061 , BIT-php-2020-7061 , BIT-php-min-2020-7061 , EUVD-2020-28195

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

In PHP versions 7.3.x below 7.3.15 and 7.4.x below 7.4.3, while extracting PHAR files on Windows using phar extension, certain content inside PHAR file could lead to one-byte read past the allocated buffer. This could potentially lead to information disclosure or crash.

Patch / fix

  • bitnami libphp 7.2.28, 7.3.15, 7.4.3
  • bitnami php 7.2.28, 7.3.15, 7.4.3
  • bitnami php-min 7.2.28, 7.3.15, 7.4.3
  • PHP Group PHP 7.3.15, 7.4.3
  • php7 Alpine 3.15, Alpine 3.14, Alpine 3.13 +2 more 7.3.15-r0

alpine advisories ALPINE-CVE-2020-7061

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-7061 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2020-7061 updated cvss 9.1

php: heap-based buffer overflow in phar_extract_file

  • Red Hat Enterprise Linux 5 php, php53 Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more Red Hat Enterprise Linux 8 php, libzip, php-gd, php-cli, php-dba, php-dbg, +30 more Red Hat Software Collections rh-php72-php, rh-php73-php, rh-php72-php-gd, rh-php73-php-gd, rh-php72-php-cli, rh-php72-php-dba, +50 more
    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

cisa ICSA-26-027-02 updated cvss 9.1

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

4.08% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.php.net https://bugs.php.net/bug.php?id=79171 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P
OSV 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami libphp
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3
bitnami php
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3
bitnami php-min
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3

Affected products

  • PHP Group PHP

Classification

Weakness
Technology feeds

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.