CVE-2008-1721 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 22.6% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 22.62% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-681 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2008-04-10 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| python | python |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Python zlib Module - Remote Buffer Overflow | 2008-04-09 |
References
- http://bugs.python.org/issue2586
- http://lists.apple.com/archives/security-announce/2009/Feb/msg00000.html
- http://secunia.com/advisories/29889
- http://secunia.com/advisories/29955
- http://secunia.com/advisories/30872
- http://secunia.com/advisories/31255
- http://secunia.com/advisories/31358
- http://secunia.com/advisories/31365
- http://secunia.com/advisories/33937
- http://secunia.com/advisories/37471
- http://secunia.com/advisories/38675
- http://security.gentoo.org/glsa/glsa-200807-01.xml
- http://securityreason.com/securityalert/3802
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.525289
- http://support.apple.com/kb/HT3438
- http://support.avaya.com/css/P8/documents/100074697
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0149
- http://www.debian.org/security/2008/dsa-1551
- http://www.debian.org/security/2008/dsa-1620
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:085
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