CVE-2026-57164
published 2026-09-04CVE-2026-57164: PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP…
PriorityP433medium5.9CVSS 3.1
AVNACHPRNUINSUCNINAH
EPSS
0.45%
38.2th percentile
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can leave the buffer too small, causing response data to be written past the end of the allocation. A malicious or man-in-the-middle HTTP server can trigger this with a crafted response; impact may range from unexpected application termination to memory corruption. Applications that consume the response incrementally (via on_data_read), or that only connect to trusted servers, are not affected. This issue has been patched via commit 8d5956a.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| pjsip | pjproject | < 8d5956afab2ede95ddb199078dc19a8ac0114f3d | 8d5956afab2ede95ddb199078dc19a8ac0114f3d |
| teluu | pjsip | <= 2.17 | — |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.08.3HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Bugzilla
CVE-2026-57164 asterisk: heap overflow in the HTTP client [epel-all]
bugzilla·2026-09-09·CVSS 8.3
CVE-2026-57164 [HIGH] CVE-2026-57164 asterisk: heap overflow in the HTTP client [epel-all]
CVE-2026-57164 asterisk: heap overflow in the HTTP client [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can leave
Bugzilla
CVE-2026-57164 pjproject: heap overflow in the HTTP client [epel-all]
bugzilla·2026-09-09·CVSS 8.3
CVE-2026-57164 [HIGH] CVE-2026-57164 pjproject: heap overflow in the HTTP client [epel-all]
CVE-2026-57164 pjproject: heap overflow in the HTTP client [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can leav
Bugzilla
CVE-2026-57164 asterisk: heap overflow in the HTTP client [fedora-all]
bugzilla·2026-09-09·CVSS 8.3
CVE-2026-57164 [HIGH] CVE-2026-57164 asterisk: heap overflow in the HTTP client [fedora-all]
CVE-2026-57164 asterisk: heap overflow in the HTTP client [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can lea
Bugzilla
CVE-2026-57164 pjproject: heap overflow in the HTTP client [fedora-all]
bugzilla·2026-09-09·CVSS 8.3
CVE-2026-57164 [HIGH] CVE-2026-57164 pjproject: heap overflow in the HTTP client [fedora-all]
CVE-2026-57164 pjproject: heap overflow in the HTTP client [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can le
Bugzilla
CVE-2026-57164 pjsip: heap overflow in the HTTP client
bugzilla·2026-09-04·CVSS 8.3
CVE-2026-57164 [HIGH] CVE-2026-57164 pjsip: heap overflow in the HTTP client
CVE-2026-57164 pjsip: heap overflow in the HTTP client
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 8d5956a, a heap buffer overflow exists in the PJLIB-UTIL HTTP client (http_client.c) when buffering an HTTP response body. This affects applications that use the PJLIB-UTIL HTTP client to receive a whole response body at once (a completion callback with no incremental on_data_read callback). When growing the response buffer, an incorrect size calculation based on the server-supplied Content-Length can leave the buffer too small, causing response data to be written past the end of the allocation. A malicious or man-in-the-middle HTTP server can trigger this with a crafted response; impact may range from unexpected application termination to m
2026-09-04
Published