CVE-2012-4505
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x...
CVE-2012-4505 is a high vulnerability (CVSS 10.0) in Libproxy Project Libproxy, published November 4, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.22%, the 88th percentile. Fixed in libproxy 0.3.1-5.1.
- Severity
- 10.0 HighCVSS 2.0, NVD
- Exploit chance
- 3.22%EPSS, 88th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.3.1-5.1libproxy +39 more
Description
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libproxyDebian:12 | before 0.3.1-5.1 | 0.3.1-5.1 |
libproxyDebian:13 | before 0.3.1-5.1 | 0.3.1-5.1 |
libproxyDebian:14 | before 0.3.1-5.1 | 0.3.1-5.1 |
libproxyDebian:6.0 | before 0.3.1-2+squeeze1, plus listed versions 0.3.1-2 | 0.3.1-2+squeeze1 |
libproxyRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-binRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-debuginfoRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-pythonRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-develRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-gnomeRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
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| Package | Affected | Fixed |
|---|---|---|
libproxy-kdeRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-mozjsRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-webkitRed Hat:enterprise_linux:6::client | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxyRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-binRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-debuginfoRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-develRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-gnomeRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-kdeRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-mozjsRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-pythonRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-webkitRed Hat:enterprise_linux:6::computenode | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxyRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-binRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-debuginfoRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-pythonRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-develRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-gnomeRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-kdeRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-mozjsRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-webkitRed Hat:enterprise_linux:6::server | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxyRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-binRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-debuginfoRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-pythonRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-develRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-gnomeRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-kdeRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-mozjsRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
libproxy-webkitRed Hat:enterprise_linux:6::workstation | before 0:0.3.0-3.el6_3 | 0:0.3.0-3.el6_3 |
What each source reports
NVD Score used
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
CVE-2012-4505- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE ListNo score
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
CVE-2012-4505- Updated
- 2026-11-02
EUVDEUVD-2012-4434No score
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
EUVD-2012-4434- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8g7q-m58p-3p6wNo score
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x...
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
GHSA-8g7q-m58p-3p6w- Weakness
- CWE-119
- Updated
- 2026-11-02
OSVNo score
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
CVE-2012-4505- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-4505No score
Heap-based buffer overflow in the px_pac_reload function in lib/pac.c in libproxy 0.2.x and 0.3.x allows remote servers to have an unspecified impact via a crafted Content-Length size in an HTTP response header for a proxy.pac file request, a different vulnerability than CVE-2012-4504.
- Record
DEBIAN-CVE-2012-4505- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
lists.opensuse.org/opensuse-updates/2012-10/msg00065.html
secunia.com/advisories/51048
rhn.redhat.com/errata/RHSA-2012-1461.html
groups.google.com/forum?fromgroups=
ubuntu.com/usn/USN-1629-1
openwall.com/lists/oss-security/2012/10/12/1
Show 15 moreShow less
debian.org/security/2012/dsa-2571
securityfocus.com/bid/55910
bugzilla.redhat.com/show_bug.cgi?id=864612
nvd.nist.gov/vuln/detail/CVE-2012-4505
github.com/advisories/GHSA-8g7q-m58p-3p6w
security-tracker.debian.org/tracker/CVE-2012-4505
access.redhat.com/errata/RHSA-2012:1461
security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1461.json
cve.org/CVERecord?id=CVE-2012-4505