Unrated severityNVD Advisory· Published Feb 13, 2022· Updated Aug 4, 2024
CVE-2021-45444
CVE-2021-45444
Description
In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
40- osv-coords38 versionspkg:rpm/almalinux/zshpkg:rpm/almalinux/zsh-htmlpkg:rpm/opensuse/zsh&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/zsh&distro=openSUSE%20Tumbleweedpkg:rpm/suse/zsh&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/zsh&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/zsh&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/zsh&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/zsh&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/zsh&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/zsh&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/zsh&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/zsh&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/zsh&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 5.5.1-9.el8+ 37 more
- (no CPE)range: < 5.5.1-9.el8
- (no CPE)range: < 5.5.1-9.el8
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.8.1-1.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-3.11.1
- (no CPE)range: < 5.6-3.11.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-3.11.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.6-3.11.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.6-7.5.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
- (no CPE)range: < 5.0.5-6.19.1
Patches
Vulnerability mechanics
References
12- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BWF3EXNBX5SVFDBL4ZFOD4GJBWFUKWN4/mitrevendor-advisoryx_refsource_FEDORA
- www.debian.org/security/2022/dsa-5078mitrevendor-advisoryx_refsource_DEBIAN
- seclists.org/fulldisclosure/2022/May/33mitremailing-listx_refsource_FULLDISC
- seclists.org/fulldisclosure/2022/May/35mitremailing-listx_refsource_FULLDISC
- seclists.org/fulldisclosure/2022/May/38mitremailing-listx_refsource_FULLDISC
- lists.debian.org/debian-lts-announce/2022/02/msg00020.htmlmitremailing-listx_refsource_MLIST
- support.apple.com/kb/HT213255mitrex_refsource_CONFIRM
- support.apple.com/kb/HT213256mitrex_refsource_CONFIRM
- support.apple.com/kb/HT213257mitrex_refsource_CONFIRM
- vuln.ryotak.me/advisories/63mitrex_refsource_MISC
- zsh.sourceforge.io/releases.htmlmitrex_refsource_MISC
News mentions
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