4.8

CVE-2020-7068: Use of freed hash key in the phar_parse_zipfile function

Modified
AliasesSUSE-SU-2020:2403-1SUSE-SU-2020:2404-1SUSE-SU-2020:2405-1
Published 09-09-2020Last modified 17-09-2024

Vulnerability summary

CVE-2020-7068 is a medium (CVSS 4.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 1.66% chance of exploitation in the next 30 days, higher than 76.7% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 4.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.66%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 9 · Related 6
DSA-4856-1OPENSUSE-SU-2024:11569-1RHSA-2021:2992RHSA-2021:4213SUSE-SU-2022:4067-1SUSE-SU-2022:4068-1

Timeline

  1. 09-09-2020
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.66%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.66% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.php.net)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse11 products
  • php5&distro=SUSE Linux Enterprise Module for Web and Scripting 12< 5.5.14-109.79.1
  • php72&distro=SUSE Linux Enterprise Module for Web and Scripting 12< 7.2.5-1.49.1
  • php72&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 7.2.5-1.49.1
  • php74&distro=SUSE Linux Enterprise Module for Web and Scripting 12< 7.4.6-1.8.1
  • php74&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 7.4.6-1.8.1
Opensuse4 products
  • php7-test&distro=openSUSE Leap 15.1< 7.2.5-lp151.6.32.1
  • php7-test&distro=openSUSE Leap 15.2< 7.4.6-lp152.2.6.1
  • php7&distro=openSUSE Leap 15.1< 7.2.5-lp151.6.32.1
  • php7&distro=openSUSE Leap 15.2< 7.4.6-lp152.2.6.1
Ubuntu4 products
  • php5< 5.5.9+dfsg-1ubuntu4.29+esm14
  • php7.0< 7.0.33-0ubuntu0.16.04.16+esm1
  • php7.2< 7.2.24-0ubuntu0.18.04.8
  • php7.4< 7.4.3-4ubuntu2.5
Debian3 products
Alpine1 product
  • php7< 7.3.22-r0 | < 7.2.33-r0
Php1 product
  • php≥ 7.2.0, < 7.2.33 | ≥ 7.3.0, < 7.3.21 | ≥ 7.4.0, < 7.4.9
Php group1 product
  • php≥ 7.3.x, < 7.3.21 | ≥ 7.4.x, < 7.4.9 | ≥ 7.2.x, < 7.2.33
Tenable1 product

8 vendors · 26 products

References

24 links
Show all 24 references