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Vulnerability Assessment Details
gzip: Multiple vulnerabilities
Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200609-13
(gzip: Multiple vulnerabilities)
Tavis Ormandy of the Google Security Team has reported multiple
vulnerabilities in gzip. A stack buffer modification vulnerability was
discovered in the LZH decompression code, where a pathological data
stream may result in the modification of stack data such as frame
pointer, return address or saved registers. A static buffer underflow
was discovered in the pack decompression support, permiting a specially
crafted pack archive to underflow a .bss buffer. A static buffer
overflow was uncovered in the LZH decompression code, permiting a data
stream consisting of pathological huffman codes to overflow a .bss
buffer. Multiple infinite loops were also uncovered in the LZH
A remote attacker may create a specially crafted gzip archive, which
when decompressed by a user or automated system exectues arbitrary code
with the rights of the user id invoking gzip. The infinite loops
may be abused by a possible hacker to disrupt any automated systems invoking
gzip to handle data decompression.
There is no known workaround at this time.
All gzip users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/gzip-1.3.5-r9"
Network Security Threat Level: Medium
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2006 Michel Arboi
|HP BladeSystem c7000 g6 x4 Enclosure w/fans and power + 64xBL490 G6 Server Blade
|Supermicro MicroBlade MBI-6118G-T41X-PACK Intel Xeon D-1541 Server Blade
|HPE Synergy 480 Gen10 Std BackPlane Compute Module - blade - no CPU P# 871941-B2
|Servers Lot2 Blade Custom Silicon Mechanics Intel Xeon R X5260 3.33Ghz DDR2 RAM
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