CVE-2022-45063

high-risk

Published 2022-11-10

xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.

Do I need to act?

17.9% chance of exploitation in next 30 days

EPSS score — higher than 82% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (4)

Xterm

Fedora

Affected Vendors

Invisible-Island Fedoraproject

References (24)

Mailing List http://www.openwall.com/lists/oss-security/2022/11/10/1

Mailing List http://www.openwall.com/lists/oss-security/2022/11/10/5

http://www.openwall.com/lists/oss-security/2024/06/15/1

http://www.openwall.com/lists/oss-security/2024/06/17/1

Release Notes https://invisible-island.net/xterm/xterm.log.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Exploit https://news.ycombinator.com/item?id=33546415

Third Party Advisory https://security.gentoo.org/glsa/202211-09

Mailing List https://www.openwall.com/lists/oss-security/2022/11/10/1

Mailing List http://www.openwall.com/lists/oss-security/2022/11/10/1

Mailing List http://www.openwall.com/lists/oss-security/2022/11/10/5

http://www.openwall.com/lists/oss-security/2024/06/15/1

http://www.openwall.com/lists/oss-security/2024/06/17/1

http://www.openwall.com/lists/oss-security/2026/04/08/1

http://www.openwall.com/lists/oss-security/2026/04/08/10

Release Notes https://invisible-island.net/xterm/xterm.log.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

and 4 more references

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high-risk

Severity 32/34 · Critical

Exploitability 13/34 · Low

Exposure 10/34 · Low