CVE-2020-28948: debian debian_linux Deserialization of Untrusted Data
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2020-28948DEBIAN-CVE-2020-28948
Published 19-11-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-28948 is a high (CVSS 7.8) Deserialization of Untrusted Data vulnerability in debian debian_linux. EPSS estimates a 47.49% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
47.49%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 10 · Related 3Timeline
- 19-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
47.49%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 47.49% on 19-09-2026
19-09-202619-10-2026
EPSS score47.49%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundArchive Tar
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- php-pear< 1:1.10.9+submodules+notgz-1.1
- debian_linuxEOL9.0 | 10.0
Ubuntu2 products
- drupal7< 7.26-1ubuntu0.1+esm2 | < 7.44-1ubuntu1~16.04.0+esm2
- php-pear< 1:1.10.1+submodules+notgz-6ubuntu0.2 | < 1:1.10.5+submodules+notgz-1ubuntu1.18.04.2 | < 1:1.10.9+submodules+notgz-1ubuntu0.20.04.1
Drupal1 product
- drupal≥ 7.0, < 7.75 | ≥ 8.0.0, < 8.9.10 | ≥ 8.8.0, < 8.8.12 | ≥ 9.0.0, < 9.0.9
Fedoraproject1 product
- fedoraEOL32 | 33 | 34 | 35
Php1 product
- archive_tar< 1.4.11
5 vendors · 7 products
References
17 links
lists.debian.org/debian-lts-announce/2020/11/msg00045.htmlMailing ListX Refsource MLISTThird Party Advisory