CVE-2008-1721 Integer overflow in n/a

What is CVE-2008-1721?

CVE-2008-1721 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 10 Apr 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Integer signedness error in the zlib extension module in Python 2.5.2 and earlier allows remote attackers to execute arbitrary code via a negative signed integer, which triggers insufficient memory allocation and a buffer overflow.

Weakness: CWE-681

Which versions are affected by CVE-2008-1721?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Python Python.

How do I fix CVE-2008-1721?

Upgrade to a fixed version.

Is CVE-2008-1721 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-1721 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3hc2-c7c2-f785, PSF-2008-2.