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CVE-2022-31628: phar wrapper can occur dos when using quine gzip file

CVE-2022-31628 · published 4 years ago

Summary

In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress "quines" gzip files, resulting in an infinite loop.

What to do

Update canonical php7.0 to version 7.0.33-0ubuntu0.16.04.16+esm5.
Update canonical php7.2 to version 7.2.24-0ubuntu0.18.04.15.
Update canonical php7.4 to version 7.4.3-4ubuntu2.15.
Update canonical php8.1 to version 8.1.2-1ubuntu2.8.

Affected software

Ecosystem	Vendor	Product	Affected versions
–	php	php	< 7.4.31 >= 8.0.0, < 8.0.24 >= 8.1.0, < 8.1.11 `cpe:2.3:a:php:php::::::::`
–	fedoraproject	fedora	35 36 37 `cpe:2.3:o:fedoraproject:fedora:35:::::::*`
–	debian	debian_linux	10.0 11.0 `cpe:2.3:o:debian:debian_linux:10.0:::::::*`
Ubuntu:Pro:14.04:LTS	canonical	php5	All versions
Ubuntu:Pro:16.04:LTS	canonical	php7.0	< 7.0.33-0ubuntu0.16.04.16+esm5 Fix: upgrade to 7.0.33-0ubuntu0.16.04.16+esm5
Ubuntu:18.04:LTS	canonical	php7.2	< 7.2.24-0ubuntu0.18.04.15 Fix: upgrade to 7.2.24-0ubuntu0.18.04.15
Ubuntu:20.04:LTS	canonical	php7.4	< 7.4.3-4ubuntu2.15 Fix: upgrade to 7.4.3-4ubuntu2.15
Ubuntu:22.04:LTS	canonical	php8.1	< 8.1.2-1ubuntu2.8 Fix: upgrade to 8.1.2-1ubuntu2.8

Original advisory text

phar wrapper can occur dos when using quine gzip file

In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress "quines" gzip files, resulting in an infinite loop.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31628... Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-31628 Vendor Advisory
https://ubuntu.com/security/CVE-2022-31628 Third Party Advisory
https://bugs.php.net/bug.php?id=81726 Third Party Advisory
https://github.com/php/php-src/commit/404e8bdb68350931176a5bdc86fc417b34fb583d Third Party Advisory
https://github.com/php/php-src/commit/432bf196d59bcb661fcf9cb7029cea9b43f490af Third Party Advisory
https://ubuntu.com/security/notices/USN-5717-1 Vendor Advisory
https://ubuntu.com/security/notices/USN-5905-1 Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2022-31628 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro... Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro... Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro... Vendor Advisory
https://security.gentoo.org/glsa/202211-03 Vendor Advisory
https://security.netapp.com/advisory/ntap-20221209-0001/ Vendor Advisory
https://www.debian.org/security/2022/dsa-5277 Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html Third Party Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

5.5 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-674Uncontrolled Recursion

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')

Timeline

Published28 Sep 2022

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2022-31628 · NVD

CVE-2022-31628 · OSV

UBUNTU-CVE-2022-31628 · OSV

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