[arch-security] [ASA-201604-8] lhasa: arbitrary code execution
anthraxx at archlinux.org
Thu Apr 14 19:43:49 UTC 2016
Arch Linux Security Advisory ASA-201604-8
Date : 2016-04-14
CVE-ID : CVE-2016-2347
Package : lhasa
Type : arbitrary code execution
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
The package lhasa before version 0.3.1-1 is vulnerable to arbitrary code
Upgrade to 0.3.1-1.
# pacman -Syu "lhasa>=0.3.1-1"
The problems has been fixed upstream in version 0.3.1
An exploitable integer underflow exists during calculation size for all
headers in decode_level3_header function of Lhasa (lha) application.
Smaller value of header_len than LEVEL_3_HEADER_LEN ( 32 ) cause during
subtraction integer underflow and lead later to memory corruption via
heap based buffer overflow.
A remote attacker is able to create a specially crafted LHA archive that
results in a heap based buffer overflow leading to arbitrary code execution.
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