CVE-2020-25219
First published: Wed Sep 09 2020(Updated: )
libproxy is vulnerable to a denial of service, caused by an uncontrolled recursion in url::recvline in url.cpp. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause stack exhaustion.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libproxy | <=0.4.15-13<=0.4.15-14<=0.4.15-5 | 0.4.15-15 0.4.15-5+deb10u1 |
| ubuntu/libproxy | <0.4.15-1ubuntu0.1 | 0.4.15-1ubuntu0.1 |
| ubuntu/libproxy | <0.4.15-10ubuntu1.1 | 0.4.15-10ubuntu1.1 |
| ubuntu/libproxy | <0.4.11-5ubuntu1.1 | 0.4.11-5ubuntu1.1 |
| debian/libproxy | 0.4.17-1 0.4.18-1.2 0.5.8-1 | |
| IBM QRadar Security Information and Event Manager | <=7.5 - 7.5.0 UP9 IF03 | |
| IBM Security QRadar Incident Forensics | <=7.5 - 7.5.0 UP9 IF03 | |
| libproxy | >=0.4.0<=0.4.15 | |
| Debian | =9.0 | |
| Debian | =10.0 | |
| Fedora | =31 | |
| Fedora | =32 | |
| Fedora | =33 | |
| SUSE Linux | =15.1 | |
| SUSE Linux | =15.2 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =20.04 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.html
- https://github.com/libproxy/libproxy/issues/134
- https://lists.debian.org/debian-lts-announce/2020/09/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CNID6EZVOVH7EZB7KFU2EON54CFDIVUR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JF5JSONJNO64ARWRVOS6K6HSIPHEF3H2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SSVZAAVHBJR3Z4MZNR55QW3OQFAS2STH/
- https://usn.ubuntu.com/4514-1/
- https://www.debian.org/security/2020/dsa-4800
- https://security-tracker.debian.org/tracker/CVE-2020-25219
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25219
- https://salsa.debian.org/gnome-team/libproxy/-/commit/1d4e4671aa6c288781cdbf1e8b5497282490aabe
- https://bugs.debian.org/971394
- https://security-tracker.debian.org/tracker/CVE-2020-26154
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=971394
- https://launchpad.net/bugs/cve/CVE-2020-25219
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNID6EZVOVH7EZB7KFU2EON54CFDIVUR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JF5JSONJNO64ARWRVOS6K6HSIPHEF3H2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SSVZAAVHBJR3Z4MZNR55QW3OQFAS2STH/
- https://ubuntu.com/security/notices/USN-4514-1
- https://www.cve.org/CVERecord?id=CVE-2020-25219
- https://nvd.nist.gov/vuln/detail/CVE-2020-25219
- https://github.com/libproxy/libproxy/commit/836c10b60c65e947ff1e10eb02fbcc676d909ffa
- https://ubuntu.com/security/CVE-2020-25219
- https://github.com/libproxy/libproxy/commit/a83dae404feac517695c23ff43ce1e116e2bfbe0
- https://www.ibm.com/support/pages/node/7173420 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2020-25219?
CVE-2020-25219 has a high severity rating due to its potential to cause denial of service through stack exhaustion.
How do I fix CVE-2020-25219?
To mitigate CVE-2020-25219, upgrade to libproxy version 0.4.17-1 or later, depending on your distribution.
What software is affected by CVE-2020-25219?
CVE-2020-25219 affects libproxy versions 0.4.x up to 0.4.15, along with some IBM QRadar products running specific versions.
What happens if CVE-2020-25219 is exploited?
Exploitation of CVE-2020-25219 can lead to a denial of service, rendering the affected service unresponsive.
Is there a workaround for CVE-2020-25219?
A temporary workaround for CVE-2020-25219 may include restricting access to the affected service until a patch is applied.
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