CVE-2011-0495 — Out-of-bounds Write in Asterisk

CWE-787 — Out-of-bounds Write6 documents5 sources
Severity
6.0MEDIUMNVD
EPSS
0.6%
top 31.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Digium AsteriskDebian AsteriskDebian Linux+3 more
Timeline
PublishedJan 20
Latest updateMay 13

Description

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.

CVSS vector

AV:N/AC:M/C:P/I:P/A:PExploitability: 6.8 | Impact: 6.4

Affected Packages5 packages

▶NVDdigium/asterisk1.4.0 — 1.4.38.1+8
▶debiandebian/asterisk< asterisk 1:1.6.2.9-2+squeeze1 (bullseye)
▶Debiandigium/asterisk< 1:1.6.2.9-2+squeeze1

Also affects: Debian Linux 6.0, Fedora 13, 14

Patches

Patch: downloads.asterisk.org ↗Patch: downloads.asterisk.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-27ph-x57w-v4gm: Stack-based buffer overflow in the ast_uri_encode function in main/utils↗2022-05-13
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OSV
CVE-2011-0495: Stack-based buffer overflow in the ast_uri_encode function in main/utils↗2011-01-20
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📋Vendor Advisories

1
Debian
CVE-2011-0495: asterisk - Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in As...↗2011
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💬Community

2
Bugzilla
CVE-2011-0495 Asterisk: Stack-based buffer overflow by forming an outgoing SIP request with specially-crafted caller ID information (AST-2011-001)↗2011-01-19
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Bugzilla
CVE-2011-0495 Asterisk: Stack-based buffer overflow by forming an outgoing SIP request with specially-crafted caller ID information (AST-2011-001) [fedora-all]↗2011-01-19
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