CVE-2020-1934
In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server.
02 Description
In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 51.95% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.8% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-04-01 19:22Z6 YR AGO
- Last updated
- 2024-08-04 06:54Z2 YR AGO
- Reserved
- 2019-12-02
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- b397530bd5f4ab859e4755c963e819384569604552668e9d732befeacc45b7b9
05 Affected products
06 References
- lists.apache.org[httpd-dev] 20200404 Odd vulnerabilities_24.html outputhttps://lists.apache.org/thread.html/r52a52fd60a258f5999a8fa5424b30d9fd795885f9ff4828d889cd201%40%3Cdev.httpd.apache.org%3E
- lists.apache.org[httpd-dev] 20200404 Re: Odd vulnerabilities_24.html outputhttps://lists.apache.org/thread.html/r1719675306dfbeaceff3dc63ccad3de2d5615919ca3c13276948b9ac%40%3Cdev.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20200420 svn commit: r1876764 - /httpd/httpd/branches/2.4.x/CHANGEShttps://lists.apache.org/thread.html/r5d12ffc80685b0df1d6801e68000a7707dd694fe32e4f221de67c210%40%3Ccvs.httpd.apache.org%3E
- lists.opensuse.orgopenSUSE-SU-2020:0597http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00002.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
- httpd.apache.orghttps://httpd.apache.org/security/vulnerabilities_24.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200413-0002/
- usn.ubuntu.comUSN-4458-1https://usn.ubuntu.com/4458-1/
- lists.fedoraproject.orgFEDORA-2020-189a1e6c3ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HYVYE2ZERFXDV6RMKK3I5SDSDQLPSEIQ/
- www.debian.orgDSA-4757https://www.debian.org/security/2020/dsa-4757
- lists.fedoraproject.orgFEDORA-2020-0d3d3f5072https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A2RN46PRBJE7E7OPD4YZX5SVWV5QKGV5/
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1888194 [13/13] - /httpd/site/trunk/content/security/json/https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073139 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/json/https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073149 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1073157 - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-1934.json security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/r33e626224386d2851a83c352f784ba90dedee5dc7fcfcc221d5d7527%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210330 svn commit: r1888213 - /httpd/site/trunk/content/security/json/CVE-2020-1934.jsonhttps://lists.apache.org/thread.html/r26706d75f6b9080ca6a29955aeb8de98ec71bbea6e9f05809c46bca4%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210603 svn commit: r1075360 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
- lists.apache.org[httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
- lists.debian.org[debian-lts-announce] 20210709 [SECURITY] [DLA 2706-1] apache2 security updatehttps://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
07 Fixed in
AlmaLinux 8
- mod_md Fixed
A version is affected if any line below covers it.
- Affected before 1:2.0.8-8.module_el8.5.0+2609+b30d9eec
- Affected before 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Arch Linux
- apache Fixed in 2.4.43-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 8
- mod_md Fixed
A version is affected if any line below covers it.
- Affected before 1:2.0.8-8.module_el8.5.0+2609+b30d9eec
- Affected before 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- apache2 Fixed in 2.4.43-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- apache2 Fixed in 2.4.43-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- apache2 Fixed in 2.4.43-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- apache2 Fixed in 2.4.18-2ubuntu3.17
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- apache2 Fixed in 2.4.29-1ubuntu4.14
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- apache2 Fixed in 2.4.41-4ubuntu3.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- apache2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.