Critical severity9.8NVD Advisory· Published Sep 30, 2020· Updated Jun 17, 2026
CVE-2020-26154
CVE-2020-26154
Description
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
57- libproxy/libproxydescription
- Range: <=0.4.15
- osv-coords55 versionspkg:rpm/opensuse/libproxy&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/libproxy&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/libproxy&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/libproxy-plugins&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/libproxy-plugins&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/libproxy&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/libproxy&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/libproxy&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/libproxy&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/libproxy&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/libproxy&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/libproxy&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/libproxy&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/libproxy-plugins&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/libproxy-plugins&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/suse/libproxy-plugins&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/libproxy-plugins&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/libproxy-plugins&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/libproxy-plugins&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/libproxy-plugins&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 0.4.15-lp151.4.3.1+ 54 more
- (no CPE)range: < 0.4.15-lp151.4.3.1
- (no CPE)range: < 0.4.15-lp152.5.3.1
- (no CPE)range: < 0.4.17-2.2
- (no CPE)range: < 0.4.15-lp151.4.3.1
- (no CPE)range: < 0.4.15-lp152.5.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.15-4.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
- (no CPE)range: < 0.4.13-18.3.1
Patches
Vulnerability mechanics
References
8- lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.htmlnvdIssue TrackingThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.htmlnvdIssue TrackingThird Party Advisory
- bugs.debian.org/968366nvdIssue TrackingThird Party Advisory
- github.com/libproxy/libproxy/pull/126nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/11/msg00024.htmlnvdMailing ListThird Party Advisory
- www.debian.org/security/2020/dsa-4800nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BID3HVHAF6DA3YJOFDBSAZSMR3ODNIW/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZVZXTFMFTSML3J6OOCDBDYH474BRJSW/nvd
News mentions
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