CVE-2003-0826

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2003-10-06 · updated 2026-06-16

Description

lsh daemon (lshd) does not properly return from certain functions in (1) read_line.c, (2) channel_commands.c, or (3) client_keyexchange.c when long input is provided, which could allow remote attackers to execute arbitrary code via a heap-based buffer overflow attack.

Affected products

GNU Lsh: 1.4, 1.4.1, 1.4.2

References

http://bugs.debian.org/211662
http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010496.html
http://lists.lysator.liu.se/pipermail/lsh-bugs/2003q3/000120.html
http://marc.info/?l=bugtraq&m=106398939512178&w=2
http://marc.info/?l=bugtraq&m=106407188509874&w=2
http://www.debian.org/security/2005/dsa-717
http://bugs.debian.org/211662
http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010496.html
http://lists.lysator.liu.se/pipermail/lsh-bugs/2003q3/000120.html
http://marc.info/?l=bugtraq&m=106398939512178&w=2
http://marc.info/?l=bugtraq&m=106407188509874&w=2
http://www.debian.org/security/2005/dsa-717

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