Security
Security
An off-by-one error in Compress::Raw::Zlib and Compress::Raw::Bzip2 might lead to a Denial of Service.
| Package | perl-core/Compress-Raw-Zlib on all architectures |
|---|---|
| Affected versions | < 2.020 |
| Unaffected versions | >= 2.020 |
| Package | perl-core/Compress-Raw-Bzip2 on all architectures |
|---|---|
| Affected versions | < 2.020 |
| Unaffected versions | >= 2.020 |
Compress::Raw::Zlib and Compress::Raw::Bzip2 are Perl low-level interfaces to the zlib and bzip2 compression libraries.
Leo Bergolth reported an off-by-one error in the inflate() function in Zlib.xs of Compress::Raw::Zlib, possibly leading to a heap-based buffer overflow (CVE-2009-1391).
Paul Marquess discovered a similar vulnerability in the bzinflate() function in Bzip2.xs of Compress::Raw::Bzip2 (CVE-2009-1884).
A remote attacker might entice a user or automated system (for instance running SpamAssassin or AMaViS) to process specially crafted files, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All Compress::Raw::Zlib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=perl-core/Compress-Raw-Zlib-2.020"
All Compress::Raw::Bzip2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=perl-core/Compress-Raw-Bzip2-2.020"