CVE-2020-7064: Use-of-uninitialized-value in exif
Vulnerability summary
CVE-2020-7064 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 4.29% chance of exploitation in the next 30 days, higher than 91.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 7Timeline
- 01-04-2020PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:LDiffers
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:LDiffers
- OSV · AlpineEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:LDiffers
EPSS trend
Probability
4.29%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.29% 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
1 foundExploit Reference (bugs.php.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu4 products
- php5< 5.5.9+dfsg-1ubuntu4.29+esm11
- php7.0< 7.0.33-0ubuntu0.16.04.14
- php7.2< 7.2.24-0ubuntu0.18.04.4
- php7.4< 7.4.3-4ubuntu1.1
Debian2 products
- php7.4< 7.4.5-1
- debian_linuxEOL8.0 | 9.0 | 10.0
Alpine1 product
- php7< 7.3.16-r0 | < 7.2.31-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 19.10 | 20.04
Opensuse1 product
- leapEOL15.1
Php1 product
- php≥ 7.2.0, < 7.2.29 | ≥ 7.3.0, < 7.3.16 | ≥ 7.4.0, < 7.4.4
Php group1 product
- php≥ 7.3.x, < 7.3.16 | ≥ 7.4.x, < 7.4.4 | ≥ 7.2.x, < 7.2.29
Tenable1 product
- tenable.sc< 5.19.0
8 vendors · 12 products
References
17 links
lists.debian.org/debian-lts-announce/2020/04/msg00021.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory