Distribution advisory
This page covers CVE-2022-31626 as tracked by Ubuntu, for the package php5. The fix is available in version 7.0.33-0ubuntu0.16.04.16+esm4; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
UBUNTU-CVE-2022-31626 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.
Affected software
UBUNTU-CVE-2022-31626 is recorded against 5 packages.
- php5
- php7.0 (fixed in 7.0.33-0ubuntu0.16.04.16+esm4)
- php7.2 (fixed in 7.2.24-0ubuntu0.18.04.12)
- php7.4 (fixed in 7.4.3-4ubuntu2.12)
- php8.1 (fixed in 8.1.2-1ubuntu2.1)
Timeline and source
Published on 13 June 2022 and last revised on 22 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
www.cve.org (Report)
Other advisories for this package
php5 has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-120: Classic Buffer Overflow) in other software:
